Fissioner
裂变材料; 可裂变材料
🗣️ 情景例句
Here they are. Family Album, U.S.A.
就在这里。美国写真！
When should I get to the airport?
我该在什么时8点45分之前到那里。
He is very happy to see his wife.
丈夫见到他妻子，很高兴。