good-for-nothing meaning in English
adj. 无益的，无用的。
2.n. 无用的人，饭桶。
Examples
- Where is that good-for-nothing son of yours ?
你那个废物儿子在哪儿呢？ - What a good-for-nothing you are !
连这点事都不会干。 - The chap is a good-for-nothing .
这个人真没出息。 - You'll never amount to anything, you good-for-nothing bums !
这班没出息的东西，一辈子也不会成器。 - Till there's a war they are idle good-for-nothing nothing .
战争之前，他们个个百无聊赖，游手好闲。