2 sentences

1. 游泳时分开手指。

   yóu​yǒng shí fēn kāi shǒu​zhǐ.

   Spread your fingers when you swim.

   Source: CCMatrix

2. 他不知道他为什么要这样张开手臂。

   tā bù​zhī​dào tā wèi​shén​me yào zhè​yàng zhāng kāi shǒu​bì.

   He did not know why he was opening his arms this way.

   Source: CCMatrix