to ice the cake 可不是「给蛋糕加冰」啊，理解错就尴尬了！

笔记：skate on thin ice 如履薄冰
walk on thin ice 如履薄冰
花样滑冰是 figure skating，skate 就是滑冰的意思，这个词组就是表示 a situation where someone is taking a risk by doing something that might cause trouble or offend people, often because they are nearing a limit or boundary of acceptable behavior.


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