Operational maintenance
[计] 运行维护
🧩 词语组成解析
🗣️ 情景例句
Matches?
火柴？
It seems he has a lot of bright ideas.
看起来他好像有很多聪明意见。
Through my hands and fingers, I heard the sounds that one hears on a farm, the noises made by cows, horses, chickens and pigs.
通过手和手指，我听到了人们通常在农场所听到的声音--即牛、马、鸡、猪等叫出的声音。