Vacuum metallurgy
[化] 真空冶金
🧩 词语组成解析
🗣️ 情景例句
The game was put off due to heavy rain.
由于下大雨，比赛延迟了。
How often did I tell you to keep quiet?
我告诉你多少次要安静?
I'd come too if I had time to spare.
如果我能匀出时间，我也愿意去。