她突然转身，迈开穿着雅致的皮鞋的双脚离去了。

She turned on her elegantly shod heel.

《牛津词典》

他突然转身走开了。

He turned abruptly and walked away.

《柯林斯英汉双解大词典》

她突然转身就跑。

She wheeled around and started running.

《牛津词典》

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

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