Backflips
(backflip 的复数) n. 后翻式；后滚翻；倒翻筋斗\\nvi. 后空翻；表演后空翻
🗣️ 情景例句
Don't litter.
请不要乱扔东西。
Do you think there is something wrong with the contract?
你认为合同有问题吗？
I've never been there.Have you ever been there, Ken?
我从未去过。肯，你去过吗？