1 sentence

1. 砂轮打磨金属时迸发出耀眼的火星。

   shā​lún dǎ​mó jīn​shǔ shí bèng​fā chū yào​yǎn de huǒ​xīng.

   Sparks fly when the grinding wheel polishes the metal.

   Source: Dong Chinese Dictionary