act according to circumstances;act as circumstances dictate;act as the occasion demands;act on seeing an opportunity;play something by ear ;

I really don't know what will happen during our trip. I guess we'll have playby ear.
我真的不知道旅程中会发生什么事. 我想我们得见机行事吧.
来源:互联网摘选I don't know what they'll want when they arrive – we'll have play it by ear.
我们不知道他们到达时需要什么——只有见机行事了.
来源:互联网摘选然而只有机会并不能获得成功, 而必须抓住机会,见机行事,创造佳绩.
来源:互联网摘选When using loudspeakers, be sure to use your discretion . You can't teach others with a cudgel.
使用高音喇叭, 千万要见机行事, 不能授人以柄.
来源:网络文摘精选Since you don't know the language I can only suggest that you follow your nose.
你既然不会这门语言,我只能建议你见机行事.
来源:词典精选例句
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