1 sentence

1. 听到发令枪响，运动员们迅速起跑。

   tīng​dào fā​lìng​qiāng xiǎng, yùn​dòng​yuán men xùn​sù qǐ​pǎo.

   At the sound of the starting gun, the athletes took off quickly.

   Source: Dong Chinese Dictionary