Gravity separation
[化] 重力分离
🧩 词语组成解析
🗣️ 情景例句
It's a serious matter for a lot of us.
对我们许多人来说这可是个严重的问题。
We have a lot of invitation cards, but they are all for the same date.
我们接到了许多请帖，但是上面的日期却全都是同一天。
His talk covered many subjects.
他的报告涉及很多课题。