1 sentence

1. 他正忙着在后院用割草机修剪草坪。

   tā zhèng máng zhe zài hòu​yuàn yòng gē​cǎo​jī xiū​jiǎn cǎo​píng.

   He is busy mowing the lawn in the backyard with a lawnmower.

   Source: Dong Chinese Dictionary