Dichotypic
二型态的
🗣️ 情景例句
Why not?
为什么不想？
You must go to the moon. It's your duty.
你必须上月球去，这是你的职责。
While two detectives were keeping guard at the door, two others opened the parcel.
这时两个侦探把住门口，另外两个侦探打开了包裹。