used
used sth to do造句？
sth to do造句？
If you select this option, POP Filters will be used to decide what to do with messages.
如果您选中此选项，POP 过滤器将用于决定要对信件进行何种操作。
Normally, this option would be used to allow the user to tell ebuild to do a parallel make.
通常，将使用该选项来允许用户告诉ebuild 执行 并行make。
woulddo和usedtodo区别？
区别就是两者意思是不一样，具体的不同如下
would do中文意思为过去现在都常常做……
used to do中文意思为过去常常做但现在已经不做。
would used区别？
would后需要跟动词原形，used这个语法就不正确。单独的used to do ... 表示过去常常做某事；还有一个表达是be/get used to doing/something... 习惯于做某事的意思。如果用would，就是would use.... 将使用什么。。。。
would do和used to do有何区别？请详细点，多造几个句子，谢谢了~？
1、used to 表示过去的状态，would表示过去反复的动作。
When he was abroad,he would read as many books as possible.
在国外时，他总是尽可能地多读些书。
Mr White used to live in China.
怀特先生过去常住中国。
2、would常跟时间状语every day,often,frequently等连用，used to则不必
The old man would go every day to the park to feed the birds.
这个老人每天到公园里去喂鸟。
Every evening,she would sit by the window,deep in thought.
每天晚上她总是坐在窗户旁，想着心事。