Tetrazane
四氮烷
🗣️ 情景例句
Very few people last in this class for the full hour the very first time.
很少人能够第一次撑完一个小时的课。
To scream for his breakfast
想吃早餐而大喊大叫。
Yes, Mr. Wu. Thank you.
好的，吴先生。谢谢您。