bark 树皮是不可数名词。bark树皮常见释义英[bɑːk]跟读美[bɑːrk]n.树皮;(狗等的)吠声,嗥叫声;枪声;短促响亮的人声;v.(狗)吠叫;厉声发令;厉声质问;擦破(或蹭掉)…的皮;例句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。变形现在分词barking过去式barked过去分词barked复数barks第三人称单数barks。