每日英语 23

Idiom of the Day

📚let off steam

✍🏾Meaning:
If you let off steam, you do something to release pent-up emotion or energy.

❕For example:

🔺After sitting quietly in class all morning, kids need time to let off steam in the playground before going back to class in the afternoon.

🔺It'd be good to have a punching bag somewhere in the office so we could let off steam whenever we get a bit angry or frustrated.

💢Note: To "blow off steam" has the same meaning.

➕Origin: This idiom probably comes from the fact that boiling water produces steam which creates high pressure that will cause an explosion if it isn't released somehow.

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