2 sentences

1. 巧克力曾被当做流通货币使用？

   qiǎo​kè​lì céng bèi dàng​zuò liú​tōng huò​bì shǐ​yòng?

   Was chocolate once used as currency?

   Source: CCMatrix

2. 家具与墙壁之间留一定空间，以便空气流通。

   jiā​jù yǔ qiáng​bì zhī​jiān liú yī​dìng kōng​jiān, yǐ​biàn kōng​qì liú​tōng.

   Leave space between furniture and the walls to allow air to circulate.

   Source: CCMatrix