4 sentences

1. 这孩子天资聪敏，学什么都很快。

   zhè hái​zi tiān​zī cōng mǐn, xué shén​me dōu hěn kuài.

   The child is naturally bright and learns everything quickly.

   Source: Dong Chinese Dictionary

2. 他的嗅觉非常灵敏，能闻到细微的气味。

   tā de xiù​jué fēi​cháng líng mǐn, néng wén​dào xì​wēi de qì​wèi.

   His sense of smell is very keen, and he can pick up subtle odors.

   Source: Dong Chinese Dictionary

3. 他的动作十分敏捷，很快就爬上了那棵大树。

   tā de dòng​zuò shí​fēn mǐn jié, hěn kuài jiù pá​shàng le nà kē dà​shù.

   His movements were very agile, and he soon climbed up that big tree.

   Source: Dong Chinese Dictionary

4. 由于他才思敏捷，仅用几分钟就解答出了难题。

   yóu​yú tā cái​sī mǐn Jié, jǐn yòng jǐ fēn​zhōng jiù jiě​dá chū le nán​tí.

   Because of his quick wit, it only took him a few minutes to solve the difficult problem.

   Source: Dong Chinese Dictionary