2 sentences

1. 这只狗身上有跳蚤。

   zhè zhī gǒu shēn shàng yǒu tiào​zao.

   This dog has fleas.

   Source: Dong Chinese Dictionary

2. 很多人喜欢去跳蚤市场淘二手货。

   hěn​duō rén xǐ​huan qù tiào​zao shì​chǎng táo èr​shǒu​huò.

   Many people like to go to flea markets to look for second-hand goods.

   Source: Dong Chinese Dictionary