Lignin
n. 木质素\\n[化] 木质素; 木素
🗣️ 情景例句
I've been studying all day, and I'm sick and tired of it.
我学了一天，现在感到厌倦。
There were times of disappointment, anger, and humiliation, and there were also times of joy.
生活中有失望、生气和屈辱的时候。
'Have you anything to declare?' he asked, looking me in the eye.
“您有什么需要申报的吗？”他直盯着我的眼睛问。