adj.胆小的，懦弱的
adv.怯懦地

Eric described the detention without trial of political opponents as a cowardly act.
埃里克称未经审判就将政敌关押起来是懦夫之举。
Tom's cowardly behavior was laughed at by his colleagues.
汤姆的懦弱的行为遭到了同事们的嘲笑。