Machine hours
[化] 机器运转时间
🧩 词语组成解析
n. 小时（hour的复数形式）
🗣️ 情景例句
I continued to teach piano lessons at home.
我继续在家教钢琴。
Do you have any tickets available for that date?
你们有那天的票吗？
It has sailed across the Atlantic many times.
它已经多次横渡大西洋。