Suddenly they do the Doppler effect where they turn their backs to you, in a way, and they're marching away from you and you hear very little sound.
突然,他们也产生了多普勒效应,当他们转身背对你时,当他们背离你前进时,你会听到一种很微弱的声音
Yeah? Doppler principle.. - I beg your pardon?
多普勒效应原理,-能不能再说遍
Doppler principle. Well, to some extent.
多普勒效应原理,某种程度上是这样
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