Machine operation
[化] 机器操作
🧩 词语组成解析
🗣️ 情景例句
This is a tough job.
这是一件困难的工作。
Air China has a flight leaving at 9:25.
中国航空公司有一班飞机，9点28分起飞。
The cave might never have been discovered has not the entrance been spotted by the distinguished French pot-holer, Berger.
若不是法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。