F-acid
[化] F酸; 2-萘酚-7-磺酸
🧩 词语组成解析
🗣️ 情景例句
Hobbies are supposed to be relaxing.
业余爱好应该是令人放松的。
Do not speak of your happiness to one less fortunate than yourself.
不要向不如你幸运的人述说你的幸福。
They were still neck and neck! But the other runners were not far behind.
他们仍在肩并肩地跑！但是，其他运动员也距离他们不远。