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
My company was the contractor.
我的公司承包了这项工程。
A hasty man is seldom out of trouble.
性急难免出岔子。
The whole village has been working day and night gathering and threshing this year's crop before the September rains.
全村的人都日夜奋战，要赶在9月的雨季之前把今年的庄稼收获上来，打完场。