Cholinic acid
[化] 胆碱酸
🧩 词语组成解析
🗣️ 情景例句
Oh, that's a very good school.
哦， 那是个好学校。
Reading is to the mind what exercise is to the body.
读书养神，锻链健身。
Is the cut still painful?
伤口还在痛吗？