Although the pesticide TDX has been widely used by fruit growers since the early 1960's, a regulation in force since 1960 has prohibited sale of fruit on which any TDX residue can be detected.

虽然 TDX 这款农药自20世纪60年代早期就被果农广泛使用，但自1960年起，一项生效的法规禁止销售任何可以检测到 TDX 残留的水果。

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Since the early 1990s, several clinics have been established in the U. S. to treat heavy Internet users.

1990年代初以来，美国已建立了一些诊所来治疗重度依赖互联网的用户。

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Since the mid-1970's, a different strategy has emerged.

自20世纪70年代中期以来，出现了一种不同的策略。

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Many voters were dissatisfied with the L.D.P.and its reaction to Japan's worst recession since the Second World War.

VOA: special.2009.09.05

No. Everybody's been using that, sort of since time immemorial or at least since the sixteenth century.

不，每个人都在用它，这个进程可能可以追溯到太古时期，不过至少16世纪。

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And in terms of equations that we use, it's sometimes easier to plug in the fact, since momentum is equal to mass times velocity.

在我们使用方程这方面，事实上有时是很容易代入的，因为动量等于质量乘以速度。

麻省理工公开课 - 化学原理课程节选

This allowed him to avoid double-taxation (since the S Corp is a pass-through entity that pays no tax).

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Despite the proposed deal not involving substantial U.S. assets, it is not inconceivable that the DoJ should investigate Mittal's bid, since the U.S. often claims jurisdiction over deals that involve large shipments into the country.

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The SeaWinds satellite, managed by NASA for the Jet Propulsion Laboratory, carries a scatterometer instrument that has measured those sea winds via microwaves bounced off the ocean's surface since the satellite's launch in June.

CNN: graphic