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
That won't do.
这可不行。
I've got a slight pain in my teeth.
我的牙有点痛。
I like looking after my sister's baby, but my sister doesn't let me do it.
我喜欢照看我姐姐的孩子，但我姐姐却不让我做这事。