better than nothing (有)比没有好；比没有强；聊胜于无；不更坏就算运气

【例句】
If you can only exercise once a week, that's better than nothing.
即便是一个星期锻炼一次，也比完全不锻炼好。

An E-mail is better than nothing, but a handwritten note can set you apart from other candidates.
一个电子感谢便条都会比什么都不做强，但手写的会让人觉得你与众不同。