Rb
[计] 归偏制\\n[医] 铷(37号元素)
🗣️ 情景例句
Hi, Son. Is everything all right?
嗨 ，孩子 一切都顺利吗？
Competition for this kind of goods is tough.
这种商品的竞争非常激烈。
In the centre of the hall, there were a number of tall structures which contained coloured lights.
展厅中央是装有彩色灯泡的许多高高的构件，