back yard的用法和樣例：
例句
- For her birthday party, Mary had a wiener roast in her back yard.
為慶祝生日，瑪麗在她家后面的院子里搞個烤香腸聚會。 - He had put up a basket on a pole in the back yard.
他在后院一根柱子上安一個球籃。 - She say with a straight face she see green spacemen in the back yard.
她面無表情地說她在后院看到綠色外星人。 - I was out in the back yard splitting logs.
我那時正在后院劈柴。
