since it began

Last year "the net migration flow from Mexico to the United States has stopped and may have reversed," it says, for the first time since records began.

该报告称，去年“从墨西哥到美国的净移民人数停止增长，并可能出现了逆转”，这是有记录以来的第一次。

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The downgrade of Taiwan's double A local-currency rating from stable to negative was the first such cut Fitch has made since it began assigning ratings to the country in late 2001.

这是自2001年底开始对台湾进行评级以来，惠誉首次将台湾AA级本币评级由稳定调整为负面。

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Jeanne Heather has attended the summer institute since it began 5 years ago.

珍妮·希瑟自这个夏季班5年前开办以来就一直参加。

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FIFA has spent$ 36 million on the program since it began nine years ago.

自从9年前实施以来，国际足联已在这个项目上投入了3600万美元。

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KMB has lost its monopoly over bus routes in Kowloon and the New Territories for the first time since it began operations in1933.

九巴自一九三三年成立以来，在九龙和新界经营巴士线的垄断局面首次遭打破。

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The IAEA investigation into Iran's nuclear program has made little progress since it began seven years ago.

国际原子能机构自七年前开始就伊朗核项目展开调查，但是目前进展甚微。

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Modern internal audit has developed quickly since it began in railways department of America in early 20th century.

现代内部审计始于20世纪初期美国的铁路部门，随后得到了迅猛发展。

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I have been studying sexting since the media attention to it began in 2008.

自从2008年媒体开始关注以来，我一直致力于研究色情短信。

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Researches on Baojuan as a kind of folklore began in the1920s and it has been studied as ceremonial music since the1980s.

20世纪20年代文学界把它作为一种民间俗文学进行研究，音乐界从20世纪80年代开始将它作为一种仪式音乐米研究。

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Spokesman Jeffrey Rowland says GAVI has done since it began ten years ago.

发言人Jeffrey Rowland表示，自十年前成立以来，GAVI已经做了许多工作。

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People has began to study characteristics of the Bone-Conducted Ultrasound ( BCU) with human hearing tests since it was found that people can perceive the ultrasound through the bone conduction.

发现骨传导人可以感知超声以来，人们通过人体实验的方法，研究和分析了骨传导超声的特性。目前，骨传导超声已应用于医学领域。

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It's the first time the agency has made such an assessment since it began investigating.

自开始调查以来，这是该机构首次发出类似的评估。

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The project of European integration is facing perhaps its most serious crisis since it began in the late 1940s.

欧洲一体化项目可能正面临自上世纪40年代末启动以来最严重的危机。

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The index is at its highest level since it began in nineteen ninety.

该指数已经达到自1990年开始计算以来的最高水平。

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Rabbits have dominated the list almost every year since it began in 1999.

属兔的富豪自从1999年胡润富豪榜发布以来一直都占据着头把交椅。

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The Thai government says about one million migrant workers have registered with the government program since it began in June.

泰国政府表示，自政府的移民工登记项目6月开办以来，已经有大约一百万移民工登记。

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Uber's ride-sharing services have run into countless political and regulatory obstacles since it began its rapid expansion three years ago, disrupting traditional taxi services.

优步自三年前开始快速扩张、扰乱传统出租车服务以来，其拼车服务遇到了无数政治和监管障碍。

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It also says that the proposed fare adjustment mechanism would "depoliticise" fare changes and also have resulted in higher fares than the MTR had freely implemented since it began operations in 1984.

香港政府还表示，拟议实施的票价调整机制将使票价变化“去政治化”，而且按照该机制拟订的票价，将高于地铁公司1984年开始运营后自主制定的价格。

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The American ride-hailing service has seen its popularity in China go through the roof since it began offering major subsidies to both drivers and passengers.

自从开始向司机和乘客提供大量补贴，这家美国打车服务公司在中国的受欢迎程度出现飙升。

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It has done so repeatedly since it began life in 1865 as a paper manufacturer.

自从1865年作为一家造纸商创建以来，它曾多次这么做过。

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australia has also introduced a government-funded vaccination programme for boys, after it recorded a sharp drop in the rate of genital warts linked to hpv since it began using the vaccine in girls, and a marked decline in the rate of high-grade cervical abnormalities in teenage girls.

澳大利亚自从开始为女孩注射疫苗后，记录显示HPV引起的生殖器疣患病率大幅下降，并且少女出现宫颈细胞高度异常的比率明显下降，于是出台了一个为男孩接种的计划，由政府出资。

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Since it began in 2005, the charity race has raised almost$ 250,000.

自2005年开始以来，这场慈善竞跑已经筹集了大约250000美元的资金。

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It was the worst flood since records began.

这是有记录以来最严重的水灾。

《牛津高阶英汉双解词典》

Since it began in the1980s, nanotechnology the field of science concerned with creating materials and devices at the atomic scale has taken off in a big way in China.

自从1980年代纳米技术也就是研究原子量级上材料和设备的科学起步以来，中国在这一领域就取得了极大进步。

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London has topped every survey since it began three years ago, followed by New York.

自该指数3年前推出以来，伦敦在历次调查终一直稳居榜首，纽约紧随其后。

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