many意思相近的词是always often sometimes

都不是，many是形容词，意思是许多的，always， often和sometimes则是频度副词，表示事情发生的频率，例如：

1、The college has close links with many other institutions.这所学院与其他许多的机构有着紧密的联系。

2、Now， obviously the jury is out on many of these complementary therapies， and I personally doubt that the coffee enema will ever， you know， gain mainstream20 approval.现在，对于许多的补充性治疗方法，明显还没有最后定论，且我个人怀疑咖啡灌肠法也不会得到大众的认同。