Definition: to become unable to speak, often because of an illness Level: B2
在比赛现场欢呼了一整夜后，他失声了。
After cheering at the game all night, he ___lost ___his ___voice.
她感冒了，正在失声，所以无法做演讲。
She caught a cold and is ___losing ___her ___voice, so she can't give the talk.
如果你不让喉咙休息，可能在表演前就会失声。
If you don't rest your throat, you might ___lose ___your ___voice before the performance.
