求half-open和half-opened区别

这个问题很难，你是在考试中遇到的吧！
其实两个都能用作状态，只是习惯不同。
假如半开的东西合上后是有空间的用half-open
， 像door，mouth.....
例：Mary and Jem stood at the half-open door, not daring to stir them, hardly to breathe.

Does her half-open mouth mean that she is about to speak, or has spoken?

如果是没有空间的用half-opened， 像book，eye，flower....
例：She happened to see on the desk a big note book markedMnutes of managers'meetings,and glanced at the half-opened pages。

He was watching the scene through half-opened eyes。

His heart fell out of the side window of his studio, and down to the balcony of the house opposite buried itself of the house opposite-buried itself in the pot of daffodils under the half-opened buds and spears of green...