Dotment
氧化铝
🗣️ 情景例句
What's your best offer?
你最多能出多少钱？
The teacher was not at all happy with his students.
那位老师对他的学生毫不满意。
and assuming such an automatic messenger picked up our first broadcasts of the 1920's,
假定外星人的这种自动化信息装置接收到了我们二十世纪二十年代的第一次广播信号，