释义
adj.
lacking courage
胆小的；怯懦的。
(of an action)carried out against a person who is unable to retaliate
（行为）可鄙的；懦夫（似）的
-
a cowardly attack on a helpless victim .对无助受害者的卑鄙攻击。
adv.
〈古〉 胆小地，胆怯地，怯懦地。
