但反复长时间暴露在这些过敏原中，你便超越了那个界限，身体便会有所反应。

with repeated exposure over time, you cross that threshold, and your body reacts.

youdao

但这次的版本第一次反应了共和党的大量投入，因为要在参议院达到60票多数的界限以形成法令，共和党的支持是必须的。

This version, however, is the first to reflect substantial input from Republicans, whose support is necessary to reach the 60-vote margin needed in the Senate for the bill to become law.

youdao

对于我来说，在欺负人与捉弄人两个行为之间并没有很明显的界限，但是我知道他不是“捕猎者”，他是个直肠子，遇到什么事就反应出来。

The border between bullying and teasing is not obvious to me, but I know he's not predatory; he shoots from the hip at random things that move.

youdao