Cyclopentene
环戊烯
🗣️ 情景例句
Thank you, Dr. Stewart.
谢谢你，Stewart大夫。
Then,it's usually time to wake up my little brother.
然后，通常是我弄醒我的弟弟的时间。
The first essential in elephant training is to assign to the animal a single mahout who will be entirely responsible for the job.
驯象中至关重要的是指派一名专门的驯象员，全面负责这项工作。