Maintenance definition
[计] 维护定义, 维护确定, 维护规定
🧩 词语组成解析
🗣️ 情景例句
We will help your children in learning lessons in their free time.
我们可以帮助您的孩子在他们空闲时学习功课。
Why didn't you go?
为什么你不去？
The six students put their closed hands in front of them.
6个学生将握紧的手放在前面。