2 sentences

1. 一滴眼泪沿着老人的脸颊淌了下来。

   yī dī yǎn​lèi yán​zhe lǎo​rén de liǎn​jiá tǎng le xià lái.

   A tear trickled down the old man's cheek.

   Source: AI Challenger 2017

2. 和大多数河流不同的是，尼罗河由南向北流淌。

   hé dà​duō​shù hé​liú bù​tóng de shì, ní​luó​hé yóu nán xiàng běi liú​tǎng.

   Unlike most rivers, the Nile flows from south to north.

   Source: CCMatrix