Dimethylethanolamine
二甲乙醇胺
🗣️ 情景例句
A friend in need is a friend indeed.
患难朋友才是真正的朋友。
Is that all he thinks about?
他想的事只是这些吗？
Dad, this box is too heavy. We can't carry it.
爸爸，这个箱子太重了，我搬不动。