1 sentence

1. 这种疫苗可以有效预防儿童感染水痘。

   zhè zhǒng yì​miáo kě​yǐ yǒu​xiào yù​fáng ér​tóng gǎn​rǎn shuǐ​dòu.

   This vaccine can effectively prevent children from contracting chickenpox.

   Source: Dong Chinese Dictionary