Phenanthrenone
[化] 菲酮
🗣️ 情景例句
The organization serves major companies in this city.
这个组织为本市各大公司服务。
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
In the play, she must appear in a bright red dress and long black stockings.
演出时她必须穿一条鲜红色的裙子和黑色的长筒袜。