bang的过去式例句：
1. My son had a tantrum and banged his fist on the ground.
我儿子大发脾气，一拳捶在了地上。
2. I lost my temper and banged my book down on the desk.
我大发雷霆，把书砰地往课桌上一摔。
3. It is now high time he banged his colleagues' heads together.
现在该是他敲打敲打同事们的时候了。
4. She'd fainted and banged her head.
她晕倒了，把脑袋给磕了。
5. She banged his dinner on the table.
她把他的饭菜砰地摔在了桌子上。