Obcs
abbr. object based control structure 基于对象的控制结构
🗣️ 情景例句
we don't have to.
我们不必勉强。
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
I won't be able to see him today.
今天我不可能去看他。