7 sentences

1. 他在学校干了件蠢事。

   tā zài xué​xiào gàn le jiàn chǔn​shì.

   He did something stupid at school.

   Source: OpenSubtitles

2. ‎你怎么会干出那种蠢事？

   ‎ nǐ zěn​me huì gàn chū nà zhǒng chǔn​shì?

   How could you do something so stupid?

   Source: OpenSubtitles

3. 我说过叫你别做蠢事了吧。

   wǒ shuō guo jiào nǐ bié zuò chǔn​shì le ba.

   I told you not to do anything stupid.

   Source: OpenSubtitles

4. 别再做蠢事了。

   bié zài zuò chǔn​shì le.

   Stop doing stupid things.

   Source: OpenSubtitles

5. 他因为一时冲动做了一件蠢事。

   tā yīn​wèi yī​shí chōng​dòng zuò le yī jiàn chǔn​shì.

   He did something stupid on impulse.

   Source: Dong Chinese Dictionary

6. 他总是做些蠢事，大家都叫他小白。

   tā zǒng​shì zuò xiē chǔn​shì, dà​jiā dōu jiào tā xiǎo​bái.

   He's always doing stupid things, so everyone calls him a dummy.

   Source: Dong Chinese Dictionary

7. 他一时间利欲昏迷，竟然做出了这种违法的蠢事。

   tā yī​shí​jiān lì yù hūn​mí, jìng​rán zuò​chū le zhè zhǒng wéi​fǎ de chǔn​shì.

   Blinded by greed for a moment, he actually committed such a stupid and illegal act.

   Source: Dong Chinese Dictionary