Defined variable
[计] 定义变量
🧩 词语组成解析
a. 清晰的, 轮廓分明的；有定义的, 确定的
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
A word spoken is past recalling.
一言既出，驷马难追。
I slipped and fell downstairs.
我滑了一跤，从楼梯上摔下来了。