Perfect vacuum
[电] 完全真空
🧩 词语组成解析
🗣️ 情景例句
Your cooking is better than mine, and I certainly prefer not having to bother to cook at all.
你的菜煮得比我好，我当然就不想班门弄斧了。
What's the fare?
车费多少？
The doctor said he could do nothing to help him.
医生说他对此无能为力。