Backshift
准备班, 交叉班
🗣️ 情景例句
I can't drop the price any further, the owner doesn't allow it.
我不能再进一步砍价了，卖主不肯让步。
How much is this?
这个多少钱？
The people performing all play different instruments and three of them sing too.
参加演出的人都要演奏不同的乐器，其中三位也演唱。