Strong winds can turn boats when the tide is weak.

潮汐微弱时，强风可以掀翻船只。

《柯林斯英汉双解大词典》

Each of the four fundamental forces (gravity, electromagnetism, and the strong and weak nuclear forces) has a kind of theoretical knob.

四种基本力（万有引力、电磁力、强核力和弱核力）中的每一种都有一个理论上的旋钮。

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This would be? Well let's think through this in one additional way and that is--notice that in duple meter we have a strong beat, right "Strong, weak, strong, weak, strong, weak, strong weak" in that sense or if we have triple it would be "Strong, weak, weak, strong, weak, weak."

是什么呢,我们用另一种方式来想,这个,你们知道二拍子,有很强的鼓点,对吧,强,弱,强,弱,强,弱,强,弱,那在这种情况下如果我们拿一段三拍子,那就会是,强,弱,弱,强,弱,弱

耶鲁公开课 - 聆听音乐课程节选

To begin with, I believe that all nations -- strong and weak alike -- must adhere to standards that govern the use of force.

CNN: Obama: 'Peace requires responsibility'

At 120 to a dollar, the yen is neither very strong nor weak - 110 or 100 would be considered strong.

CNN: MONEY & INVESTING

New Labour's massive majorities in 1997 and 2002 came not from focus groups and presentational brilliance but substance - from a long line of revisionism and modernisation that started in the post-war period and continued sometimes strong, often weak, until Tony Blair and Gordon Brown finally re-invented progressive politics in Britain in the mid-1990's.

BBC: Philip Gould: What 'permanent campaign'?