1.
These methods have fallen into disuse.
这些方法已废而不用了。
2.
Words which fall into disuse may sometimes be revived with a new meaning.
废而不用的词有时会有新意而再用起来。
3.
He allowed his talent to rust over the years.
他让自己的才能经年不用而荒废。
4.
fall [pass] into desuetude
变成废物,变成废弃不用
5.
Never do things by halves. --Reade
凡事不要半途而废。——里德
6.
Never do things by halves.
〔谚语〕做事不可半途而废。
7.
Quitter never win,and winners never quit.
半途而废的人永不会胜利，而胜者永不会半途而废。
8.
The design is scrubbed at the drawing board stage as being impractical.
这一设计图纸还未画出就被认为不实用而遭废弃。
9.
The design is scrub at the drawing board stage as is impractical
这一设计图纸还未画出就被认为不实用而遭废弃
10.
One will lose one's command of any language, including the mother tongue, if one does not practise it over a long period of time.
任何语文，包括母语，就是学了久而不用亦是会荒废的。
11.
Why do you keep all this old junk? Those old useless things are not worth a red cent!
你为什么留下这些废物？这些老旧而无用的东西毫不值钱啊！
12.
The rabbit can be rejected.
啰兔装置应废弃不用。
13.
The word has fallen into disuse
该字现已废止不用。
14.
Walter did nothing by halves.
沃尔特做事从不半途而废。
15.
spoilt ballot papers,ie made invalid because the voters have not marked them properly
废选票（因划票不符规定而失效）
16.
You should have some perseverance. Don't give up halfway.
你做事要有长性, 不能总是半途而废。
17.
However, the peacock although is virulent, cannot abandon the article.
然而，孔雀虽有毒，不可废文章。
18.
We must carry the experiment through to the end, not give up halfway.
这项试验一定要搞到底, 不能半途而废。