Caesiation
铯激活
🗣️ 情景例句
He has an old head on young shoulders.
他年轻又有见识。
On a crowded train, one comes in contact with many people.
在拥挤的火车里面，会和许多人接触。
I don't know. I've got a headache and a cough.
我不知道。我头痛和咳嗽。