Propionylcholine
[化] 丙酰胆碱
🗣️ 情景例句
Would you prefer a window, aside or enter seat?
您喜欢靠窗、靠走道还是中间的位置？
I have no secret of success but hard work.
成功无秘诀，只是努力干。
I don't know. My head hurts.
不知道。我头痛。