vi.吠叫,厉声说话
vt.大声喊出,厉声说出
n.犬吠声,似吠声,树皮
He started to hack away at the tree bark.
他开始砍树皮。
This tree is always recognizable by its extremely beautiful silvery bark.
这种树很容易辨认,因为它有着非常漂亮的银色树皮。
I set the log on the ground and shaved off the bark.
我将原木放到了地上,刨掉了树皮。