Caesium
[医] 铯(55号元素)
✅ 同义词
🗣️ 情景例句
As you see, the goods we ordered are seasonal goods.
你知道，我们这批货物是季节性的。
Open your eyes!
眼睛放亮一点！
What do you find hardest in English?
你觉得学习英语哪方面最难？