Fissioner
裂变材料; 可裂变材料
🗣️ 情景例句
Don't forget to bring me a souvenir.
别忘了给我带回点儿纪念品。
I asked him to go to the store, but he wouldn't
我请他去商店，但是他不肯。
Mr.Sawyer comes home from work.He arrives home late.
索耶先生下班回家。他到家很晚。