He put on an act, which showed him up completely.
他这番表演, 真可谓淋漓尽致.
《现代汉英综合大词典》
No need to put on an act.
不要装神做鬼!
汉英文学 - 中国现代小说
" You don't have to put on an act with me, " the boy sneered.
金旺 撇 撇嘴说: “ 咦!装什么假正经?
汉英文学 - 中国现代小说
He put on an act of being busy working Io avoid seeing me.
他装出一副忙于工作的样子避开我.
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