Maintenance system
[计] 维护系统
🧩 词语组成解析
🗣️ 情景例句
If it is caused by the transportation?
如果是由运输造成的呢？
Who has no haste in his business mountains to him seem valleys.
做事不急，履险如夷。
He has an old head on young shoulders.
他年轻又有见识。