Etheride
酰卤化物
🗣️ 情景例句
to spend a weekend with him at his farm.
去他的农场跟他一起渡个周末。
The flight number is ak708 on september 5th.
班机号码是9月5日ak708
We are now living in a beautiful new house in the country.
我们现在住在乡间的一栋漂亮的新住宅里。