He put on an act, which showed him up completely.

他这番表演，真可谓淋漓尽致。

《新英汉大辞典》

Louisa put on an act, pretending she did not care about him in the least.

路易莎装腔作势，装出她一点也不把他放在心上的样子。

youdao

Let's go around and find him and we'll put on an act... and we'll get him back.

我们出去找到他，然后展开行动，这样我们就能要回他。

youdao

Put on an act for long enough and it's hard to remember what's real.

NPR: Excerpt: 'Inventing Niagara'

The DRC is also pressing for a new equality act to put all discrimination law on an equal footing as part of a "quantum leap" in anti-prejudice measures.

BBC: Equality agency plans under fire

In 2006, Ms. Powell Jobs backed an effort led by College Track students to collect signatures backing passage of the Dream Act, a federal bill to put an estimated two million young people on a path to citizenship.

WSJ: Laurene Powell Jobs, Widow of Steve Jobs, Goes Public to Promote Dream Act