Alternando
更比定理
🗣️ 情景例句
Oh, I took the liberty of ordering some breakfast for you.
噢 ，我冒昧给你们订了早餐。
You can't count on Tom being punctual.
你不要指望汤姆会守时。
Look at your clothes! Where have you been?
瞧你们的衣服！你们去哪儿了？