Invertibility
[计] 可逆性
🗣️ 情景例句
Is this the Pete Waters farm?
这是Pete Waters的农场吗？
Here we are. $8.50, please.
我们到了。请付8。5美元。
At night, when you really wish to go to sleep, you rarely manage to do so.
到了夜晚，你真想睡了，却很难入睡。