2 sentences

1. 蜗牛一碰到障碍物就会缩回触角。

   wō​niú yī pèng​dào zhàng'ài​wù jiù huì suō​huí chù​jiǎo.

   A snail retracts its tentacles as soon as it touches an obstacle.

   Source: Dong Chinese Dictionary

2. 道路上的障碍物已被清理，交通恢复了正常。

   dào​lù shàng de zhàng'ài​wù yǐ bèi qīng​lǐ, jiāo​tōng huī​fù le zhèng​cháng.

   The obstructions on the road have been cleared, and traffic has returned to normal.

   Source: Dong Chinese Dictionary