2 sentences

1. 缝补衣服时要小心锋利的针头。

   féng​bǔ yī​fu shí yào xiǎo​xīn fēng​lì de zhēn​tóu.

   Be careful of the sharp needle when mending clothes.

   Source: Dong Chinese Dictionary

2. 她把缝补衣服用的针插在布垫上，防止一不小心掉在地上。

   tā bǎ féng​bǔ yī​fu yòng de zhēn chā zài bù​diàn shàng, fáng​zhǐ yī​bù​xiǎo​xīn diào zài dì​shang.

   She stuck the sewing needle into a pincushion to prevent it from accidentally falling onto the floor.

   Source: Dong Chinese Dictionary