Lactoprecipitin
乳沉淀素
🗣️ 情景例句
What are your hobbies?
你的爱好是什么？
If you have any comment about these clauses, do not hesitate to make.
对这些条款有何意见，请尽管提，不必客气。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，