This is always true, but this is only true when it is pure roll.

这永远都是成立的，但只有纯滚动的条件下才会成立。

youdao

This is always happening.

这种事情经常发生。

youdao

This is always not true.

但这通常都是不正确的。

youdao

That was the song "Discoverer." Like many R.E.M.songs, this one is poetic with a meaning that is not always clear.

VOA: special.2011.03.18

You're allowed Cv comes out here for this adiabatic expansion, which is not a constant volume only because this is always true for an ideal gas.

绝热过程写下,这个式子是因为它对理想气体都成立，并没有用到等容过程的条件,只用了理想气体的条件。

麻省理工公开课 - 热力学与动力学课程节选

So, in general what we see, and this is always true if we're comparing the same atom, and in general, if we're comparing different types of molecules, but we know that a single bond is always weaker than a double bond, which is weaker than a triple bond.

通常我们会看到，这对比较相同原子来说总是正确的，通常，如果我们要比较不同种类的分子，但我们知道单键,总是要比双键弱，双键总是要比三键弱。

麻省理工公开课 - 化学原理课程节选

The company insists this is always a last resort, where the sender cannot be traced.

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This is always the moment when the queasy calculations begin - spoken and unspoken.

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Which is that stock valuations are forward looking: this is always true of markets, they are forward looking.

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