Backstep
后退
🗣️ 情景例句
Are you having a good time, Susan?
玩得高兴吗， Susan？
Won't you buy me a newspaper on your way home?
回家的时候，替我买份报纸好不好？
He informed the station at once, but no one there was able to explain the mystery.
他马上把情况报告了该基地，但那里的人没有一个能解释这到底是怎么回事。