Constant criticism is enough to demoralize anybody.

　　頻繁的批評足以使任何人意志消沉。

　　His moving speech was enough to carry the audience.

　　他感人的演講足以贏(yíng)得聽(tīng)眾的支持。

　　I am old enough to remember the War, but only just.

　　我這個(gè)年齡足以記住那場(chǎng)戰爭，不過(guò)只是勉強記得。