Naphthoyloxy
萘甲酸基
🗣️ 情景例句
for a long time,
很久了，
Necessity is the mother of invention.
穷则变，变则通。
Open your mouth, Jimmy.Show me your tongue.Say, Ah'.
把嘴张开，吉米。让我们看看你的舌头。说“啊——”