Bilevel
两层平房(第二层入口低于地面), 错落式住宅
🗣️ 情景例句
May I help you, sir?
需要我帮忙吗，先生？
Who called a while ago?
刚才谁在打电话？
Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
它们随船飞行一小时也难得见其扇动一下翅膀。