Vitamin k-s
[化] 甲萘醌巯丙酸; 2-巯丙酸维生素K-3
🧩 词语组成解析
🗣️ 情景例句
You're a big boy.
你是个大孩子了。
I need small change.
我需要零钱。
I agree with you. We've got to do something about pollution. It's getting worse.
我同意你的看法。我们得对污染采取措施了。污染越来越严重了。