They went away in opposite directions.

他们沿着反方向走了。

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They are actually in opposite directions.

它们实际上是相反的方向。

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Basically, the phenomenon of Standing Waves occurs when sound waves of the same frequency reflect off the walls and meet from opposite directions.

基本上，当相同频率的声波从墙壁上反射并从相反方向相遇，就会出现驻波现象。

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Some greet each other as they pass in opposite directions or ring their bells at cars driving alongside.

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At their core, however, the two plans would tilt the health care system in opposite directions.

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The prices of gold and more mundane metals may therefore start to move in opposite directions.

ECONOMIST: Commodities