Ris
[医][=radioimmunosorbent]放射免疫吸附剂
🗣️ 情景例句
Well, I've got to run, Dad.
嗯， 我得赶紧走了， 爸爸。
Do not sell the bear's skin before you have caught the bear.
熊未到手休卖皮（勿过早乐观）。
Look out! There is a car coming.
小心，车来了。