Backjoint
n. 石阶踏步背榫; 留槽待填
🗣️ 情景例句
What do you want to do after breakfast?
早餐后你想做什么？
You'd better go at once, hadn't you?
你最好马上走，不对吗？
he is lending the bank money, repayment of which he may demand at any time,
就等于把钱借给了银行。这笔钱他可以随时提取，