Perfective maintenance
[计] 完善性维护
🧩 词语组成解析
a. 完成的, 完成时的\\nn. 完成时
🗣️ 情景例句
I go camping in the mountains to enjoy the fresh air.
我去山中宿营以享受新鲜的空气。
When will you be released?
你预定何时出院？
The toilet?Oh, it's over there. This way, please.
洗手间，噢，在那儿，这边来。