Fima
费马(已裂变原子数与初始的总装料金属原子数之比)
🗣️ 情景例句
Good idea.
好主意。
Hasty climbers have sudden falls.
大起者有大落。
Did you serve this gentleman half an hour ago, Caroline? He says he's the man who bought these books.
卡罗琳，半小时前你接待过这位先生吗？他说他就是买这两本书的人。