some和any的区别及用法would like

例句：

1、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、Some people don't know when they're well off.

有些人身在福中不知福。