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
And I love you.
我也爱你们。
Change is in the air.
人们感觉即将发生变革。
The nurse assisted the doctor in the operating room.
护士在手术室协助医生动手术。