HSK 7–9 · verb · Practice
开动
to start (a machine); to set in motion; to get (one's brain) working
机器已经开动了，请大家站远一点。
Jīqì yǐjīng kāidòngle， qǐng dàjiā zhàn yuǎn yì diǎn。
The machine has started, so please stand a bit farther away.
火车开动前，我们互相道别。
Huǒchē kāidòng qián， wǒmen hùxiāng dàobié。
Before the train started, we said goodbye to each other.