Beta-lactam
[医]β-内酰胺，乙内酰胺
🧩 词语组成解析
n. 希腊字母表的第二个字母\\n[医] β(希腊文的第二个字母), 乙种
n. [化] 内酰胺, 乳胺
🗣️ 情景例句
John isn't here today. That figures, he looked very sick yesterday.
约翰今天没有来，怪不得，他昨天就好像不太舒服。
Just do what it says.
照着做就对了。
It was an important part of Native American's existence.
野牛是美洲土著人赖以生活的重要部分。