Sylvic acid
[化] 松香酸
🧩 词语组成解析
🗣️ 情景例句
Many business people turn off their pagers and cell phones during their leisure time.
许多商人在他们的休息时间里都把传呼机和移动电话关掉。
I'm too late.
我太迟。
On the way home, he asked Jenny if she had enjoyed the speech.
在回家的路上，他问珍妮是否喜欢他的祝词。