Now, this can only happen when you are in practice mode, not when you are in conversation mode.

这只会发生在练习模式下，而不是在对话模式下。

With these apps' conversation mode, you talk into a phone and a spoken translation is heard moments later; the app can also listen for another language and produce a translation in yours.

在这些应用程序的对话模式下，你可以对着手机说话，片刻之后就会听到翻译出来的语句，这种应用还可以倾听另一种语言，然后翻译成你的语言。