avail

n.效用，利益

vt.& vi.有益于，有益于；使对某人有利

网络解释.有益于；有帮助；效用；用处

词形变化:

复数：avails 复数：availed 复数：availed 复数：availing 复数：avails

avail someone nothing of little (或 no) avail to li 1 . (古)（行动）无助于 习惯用语 avail (oneself) of 1 . 利用

n.1.效用;利益;帮助释义下的同义词

service advantage worth value benefit profit gain use help