Cesium
n. 铯\\n[化] 铯Cs
✅ 同义词
🗣️ 情景例句
You got it.
你算说对了。
I didn't know whether to send the letter airmail or not.
我不知道是否送航空邮件。
We'd better not just talk; let's go to the river to bathe.
我们最好别光顾说了；咱们去河里游泳吧。