we will have to finish the job,however long it takes这是个什么句子,什么用法

in this sentence ,however can be repalced by "no matter how"
however 的用法如下：
1、used with an adjective or adverb to mean ‘to whatever degree’ （与形容词或副词连用）无论到什么程度，不管多么。在此用法中however等于no matter how ，也就是你例子中的用法。
2、in whatever way 不管怎样；无论如何
However you look at it, it's going to cost a lot. 不管你怎么看，它都要花很多钱。
3、used to introduce a statement that contrasts with something that has just been said 然而；不过；仍然
We thought the figures were correct. However, we have now discovered some errors. 我们原以为这些数据正确。不过我们现在发现了一些错误。

这个句子是一个倒装句 其实正确的表述 应该是 however long it takes，we will have to finish the job 变成陈述句 楼主应该就明白啦 就是it takes our long time to finish the job. 楼主记得加分啊 谢啦

倒装,不管用多长时间,我们都要完成这份工作

无论花多长的时间我们都要完成这个工作
望采纳