Give somebody a dirty look:
给某人一个下流的表情 ×
瞪…一眼 √
例句：
Don't give me a dirty look; it's not my fault.
干嘛瞪着我看，又不是我的错。
Play dirty:
玩脏东西 ×
耍猫腻，耍花招 √
例句：
Their team started playing dirty as soon as they fell behind.
他们的队伍一落后，就开始耍花招。
Down and dirty:
下面和肮脏 ×
卑鄙下流的 √
例句：
This guy ran a real down and dirty campaign.
这家伙搞竞选真不择手段。
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