Spyware
间谍软件；后门程式
🗣️ 情景例句
We needed the money.
我们当时需要钱。
She hesitated about what to do next.
他对下一步干什么拿不定主意。
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。