Immunogen
n. 免疫原
🗣️ 情景例句
I'll call in the morning and set up an appointment to see him.
我明天早上就打电话给他， 跟他约个时间去看他。
How awful.
多可怕呀！
Unfortunately you'll have to pay the fine before you check those books out.
在你借书之前你要先付清罚款。