推荐回答（2个）
一些:some
相关释义
a number of
一些；许多的
certain
pron.某些
some
det.一些；若干；某些；部分；好些；不少的；相当多的；少量的；某个；真可谓，算不上
a few
少许；几个；〔反语〕很多；一点点
a little of
少些， 一点
There have been some problems but basically it's a good system.
虽然出现过一些问题，但这基本上仍不失为一个好系统。
2.
There are some obvious practical applications of the research.
这项研究有一些明显的实际用途。
3.
I had some idea of what the job would be like.
我对于这份工作有了一些了解。
4.
Researchers in this field have made some important new discoveries.
这个领域的研究人员有了一些重大的新发现。
有用英语：be of use。
短语
to be of use 顶用 ; 抵用
be out of use 不时行 ; 不通用 ; 作废 ; 没有人用
be of great use 很有用
be of no use 不成功 ; 没有用处 ; 无用
Certificates Be of NO Use 金融考证
be of little use 用处不大
同近义词
adj. 有用的
useful , serviceable
But he believes that theory, to be of use, must keep its feet on the ground.
但他相信，具有实用价值的理论必须要能与实际的生活情况相结合。
The contents of this booklet should be of use to all students.
这本小册子的内容应该对所有的学生都有用。
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