Cbsa
abbr. cationized bovine serum albumin 阳离子化牛血清白蛋白
🗣️ 情景例句
Well, here's a twenty.
嗯 ，这是二十美元。
When did you travel?
你什么时候旅行？
She's not feeling well. I told her to stay in bed till tomorrow.
她感觉不好。我叫她在床上躺着，一直到明天。