Sbackup
[計] 后備程序
??? 情景例句
I ran into Stone at the supermarket this morning.
早上我在超級市場碰見世通了。
No need to discuss!
免談！
On the way home, he asked Jenny if she had enjoyed the speech.
在回家的路上，他問珍妮是否喜歡他的祝詞。