Clastogen
断裂剂
🗣️ 情景例句
No. Instead of exercising, I photographed the class.
没有， 没有， 我在给他们拍照。
He has a radio,doesn't he?
他有一台收音机，对不对？
Were there any exciting incidents during your journey?
你们在旅行中有没有什么令人激动的事情？