Heptane
n. [化]庚烷
🗣️ 情景例句
Please excuse me for a minute.
失陪一会儿。
You can never tell.
不知道。
Mr. Fang is in London. He's looking for different places. He needs some help.
方先生在伦敦。他在寻找一些地方，他需要帮助。