n.士气；斗志；道德准则
They bolstered their morale by singing. 他们以唱歌来鼓舞士气。
They sang songs to keep their morale up. 他们唱 歌以保持高昂的士气。
A sincere compliment boosts one's morale. 由衷的称赞可鼓舞一个人的精神。
As a Puritan, he is strict in moral and religion. 作为清教徒，他的道德和宗教观念都很严格。
