Bifunctionality
双官能度
🗣️ 情景例句
I went back for it, but the ferry was gone.
等我回去找的时候 船已经开走了。
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
If fifty pence pieces are not exchanged for sweets, they rattle for months inside money boxes.
如果50便士不拿来换糖吃，则可以放在储蓄罐里叮当响上好几月。