Sinapin
n. [生化]芥子酸胆碱
🗣️ 情景例句
and a book of photos about the United States still feels right.
而一本关于美国的摄影集仍然很有前景。
Don't be shy, dear.
亲爱的，你别害羞嘛。
Visitors have been asked to keep the woods clean and tidy.
游客已被告知要保持树林的整洁。