屏息靜氣 Hold Your Breath
Story and comic created by CCFamily.
If people are holding their breath, they are waiting excitedly or anxiously for something to happen. On the other hand, if you are told not to hold your breath, it means that you shouldn't have high expectations about something. Or you say it in order to tell someone that an event is not likely to happen.
1. The lucky draw is going to start soon. Now I'm holding my breath!
2. I held my breath when the result was announced.
3. She said she would finish the task this week but don't hold your breath.
Reference: Cambridge Dictionaries Online (Learners')