Precipitin
n. 沉淀素\\n[化] 沉淀素
🗣️ 情景例句
Could you get one for me, please?
麻烦你帮我叫一辆好吗？
I will take an escalator.
我将去搭手扶电梯。
Don't ask me, sir. I only laid the table.
别问我，先生。我只是摆桌子。