Backjoint
n. 石阶踏步背榫; 留槽待填
🗣️ 情景例句
Excuse me, but could I ask you a quick question?
对不起，我能问你一个简短的问题吗？
I've definitely decided to go to California.
我毫无疑问决定了去加利福尼亚。
Do you want a cup?
你想要一杯吗？