Actinogenic
射线发生的
🗣️ 情景例句
I understand.
我了解。
I get into bed at about 11:30 and go right off to sleep.
我大约在11:30上床并且睡觉。
Now the other stuents open their eyes, and guess who has the eraser.
现在其余的学生张开眼，然后猜谁手里有橡皮擦。