bitter bark

常见例句

A tall, usually evergreen East Indian tree(Azadirachta indica) widely cultivated in tropical Asia for its timber, resin, bitter bark, and aromatic seed oil.
印度楝树木很高，常青的东印度树（印度楝楝属）因其木材，树脂，苦树皮和芳香的种子油而普遍种植于亚洲的热带地区
The defeat was a bitter pill to swallow.
那次失败是一次难以吞咽的苦果。
Those trees have very beautiful white bark.
那些树长着非常漂亮的白色树皮。
It is really a bitter pill to swallow at that time.
在当时，那真是一件不得不忍受的苦事。
Not only did the dog bark at him, but (it) bit him.
这只狗不但对他吠叫，而且咬了他。
Only after a bitter struggle was the aim achieved.
这个目的只有经过艰苦的斗争才能达到。