🧩 词语组成解析
n. 静脉\\n[医] 静脉
🗣️ 情景例句
worrying about him.
为他操心。
If you want knwledge, you must toil for it.
若要求知识，必须刻苦学习。
It is because his feet move on, but his head stays still.
这是因为他的脚动了，而他的头保持着静止。