如何区分The flowers were sold in no time.和The flower sells well.中sell的用法?sell什么时候用主动、什么时候用被动?

问题描述:

如何区分The flowers were sold in no time.和The flower sells well.中sell的用法?
sell什么时候用主动、什么时候用被动?

物品+be+sold
人+sell+物品
例子 Tom sells his car to a young girl.
The car is sold to a young girl by Tom.

这么理解吧.
当强调销售的行为时(卖出),用被动.
例句一:这些花不一会儿都被卖掉了.
当说明销售的状况时(如畅销之类),用主动.
例句二:这些花卖得不错.