Refdanskite
水硅镍矿
🗣️ 情景例句
We have around 3,000 workers.
大约有3000名职工。
The tour will take about an hour and a half. We ought to be back here by 3:00.
参观大概要一个半小时，3点钟以前回到这里。
I really ought to go and have my eyes tested.
我确实该去检查一下我的眼睛了。