Nonnitrogenous
a. 不含氮的
🗣️ 情景例句
and my math teacher's going to miss her.
而我的数学老师也会想念她。
He gave a lecture on agriculture.
他作了一个关于农业的讲座。
The coldest season of the year is winter.
一年里最冷的季节是冬天。