some：
det.(與不可數(shù)名詞或復(fù)數(shù)可數(shù)名詞連用)一些，若干;(指一集體中的某些成員或一事物的某些類型)某些，部分，有的;好些;不少的;相當(dāng)多的；
pron.(數(shù)量不確切時用)有些人，有些事物;部分;有的;有些;若干；
adv.(用于數(shù)詞前，意同approximately)大約，差不多;稍微;有點；
例句：
Researchers in this field have made some important new discoveries.
這個領(lǐng)域的研究人員有了一些重大的新發(fā)現(xiàn)。
Teachers are up against some major problems these days.
老師們最近面臨著一些重大問題。
Digital television has been around for some time now.
數(shù)字電視已經(jīng)面市一段時間了。
A solution is still some way off.
解決辦法尚需時日。
Everyone experiences these problems at some time in their lives.
每個人在人生的某個階段都會經(jīng)歷這些問題。
Some people can only operate well under pressure.
有些人只有在壓力下才工作得好。