Competency tests were introduced in 1935.

1935年，能力测试被引入。

youdao

of a rejection process, especially when they were first introduced in Europe.

拒绝的过程，特别是当它们第一次被引入欧洲的时候。

youdao

The changes will be introduced in April.

这些变更将于4月实施。

《柯林斯英汉双解大词典》

After a bill is introduced in Congress, it is then sent to a committee for review.

VOA: special.2009.08.14

Well, this shows what happened in the period after this vaccine was introduced into the general population so that would have been in 1954.

这表明了,疫苗在一九五四年,引入大众后的一段时间内,发生了什么样的情况

耶鲁公开课 - 生物医学工程探索课程节选

And each time one of these errors occurs, or you get multiple errors that compound each other, then you've got a lot of potential error introduced in these messages.

每当有误差发生,或多重误差复合叠加,然后你所得到的信息,就会包含很多潜在的误差

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Taxpayers have gained from the 10p starting rate of income tax introduced in 1999.

ECONOMIST: Labour and tax

Their new assertiveness may reflect a labour law introduced in January 2008, which gave workers more contractual rights.

ECONOMIST: China's labour market

It would be the first purely Scottish tax introduced in more than 300 years.

BBC: MSPs debate changes to stamp duty on Scots properties