Backward equation
[计] 后向方程
🧩 词语组成解析
🗣️ 情景例句
Well, do we have a date?
怎样 ，我们算是约定了吗？
He informed them that his mother had died.
他通知他们的母亲死了。
Be careful! Don't throw your cigarette out of the window. If you do that, you may start a fire. Put it out in the ashtray.
当心！别把香烟丢到窗外。要是你那样做，会引起火灾的。把它熄灭在烟缸里。