6 sentences

1. 外交从来就不管用。

   wài​jiāo cóng​lái jiù bù guǎn​yòng.

   Diplomacy never works.

   Source: OpenSubtitles

2. 第一次确实管用。

   dì​yī​cì què​shí guǎn​yòng.

   It did work the first time.

   Source: OpenSubtitles

3. 别跟我说什么祈祷不管用。

   bié gēn wǒ shuō shén​me qí​dǎo bù guǎn​yòng.

   Don't tell me prayer doesn't work.

   Source: OpenSubtitles

4. 这种药对他的过敏很管用。

   zhè zhǒng yào duì tā de guò​mǐn hěn guǎn​yòng.

   This medicine is very effective for his allergies.

   Source: Dong Chinese Dictionary

5. 我希望这管用。

   wǒ xī​wàng zhèi guǎn​yòng.

   I hope this works.

   Source: OpenSubtitles

6. 你觉得上次这招管用是我几岁时？

   nǐ jué​de shàng​cì zhè zhāo guǎn​yòng shì wǒ jǐ suì shí?

   How old do you think I was the last time that worked on me?

   Source: OpenSubtitles