Naphthoyloxy
萘甲酸基
🗣️ 情景例句
I'm supposed to be worried about my daughter,
我原该为我的女儿担心才是。
He's not feeling very well today.
今天他觉得不舒服。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。