Delimiting
[计] 定界的
🗣️ 情景例句
You'd better hurry, Robbie.
你最好快点， Robbie。
I dropped the letter in the mailbox on the corner.
我把信放到角落上的邮箱里。
The aircraft was able to fly over the endless white plains without difficulty.
飞机可以毫无困难地飞过这片茫茫无际的白色原野！