Nitronaphthylamine
[化] 硝基萘胺
??? 情景例句
They can keep a record of all of the important dates
他們可以記錄下重要的日子。
She had to keep out of sight when her husband was holding a meet.
她在丈夫舉行會議時只得避不露面。
A recent article in a weekly newspaper, for instance,
例如，最近一家周報刊登了一篇文章，