Ris
[医][=radioimmunosorbent]放射免疫吸附剂
🗣️ 情景例句
They are expecting their first child.
他们在怀他们的第一个小孩。
Don't be afraid.
不用担心！
Busmen have decided to go on strike next week.
公共汽车司机决定下星期罢工。