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'm ready, Grandpa. You name the day.
我准备好啦 ，爷爷。哪一天随你挑吧。
He's tired because he worked hard all day today.
他疲倦是因为他今天整天努力工作。
They are not anxious social climbers, and they have no devotion to material things.
他们不热衷于向上爬，也不一味追求物质享受。