1 sentence

1. 河马虽然看起来笨重，但在水里游得很快。

   hé​mǎ suī​rán kàn​qǐ​lai bèn​zhòng, dàn zài shuǐ​lǐ yóu de hěn kuài.

   Although hippos look clumsy, they swim very fast in water.

   Source: Dong Chinese Dictionary