1. anyhow 表示“無論如何，不管怎樣”時，為句子副詞，用于修飾整個句子，反映說話人的看法，與 anyway同義。如：

Anyhow, I don’t care what grade I get if I pass. 不管怎樣，只要我能及格，我才不計較分數高低呢。

Anyhow, so we became friends and everything, and we call each other on the phone all the time. 不管怎樣，我們成了好朋友，并一直通電話。

I’m certain David’s told you his business troubles. Anyway, it’s no secret that he owes money.  我敢肯定戴維已經告訴過你他生意上有麻煩了。反正他欠錢也不是什么秘密了。

I’m not sure what time I’ll arrive, maybe half past seven or a quarter to eight. Anyhow, I’ll certainly be there before eight o’clock. 我說不準什么時候到，也許7點半，也許差1刻8點。但無論如何，我8點以前一定到那里。

2. however表示“無論如何，不管怎樣”時，其后通常要接形容詞或副詞，意思是“無論多么……”“不管怎樣……”。如：

People always want more, however rich they are. 人總是富了還想再富。

I refuse, however favorable the conditions are. 不管條件如何有利，我都不干。

However hard I worked, she was never satisfied. 無論我多么努力地工作，她從來沒滿意過。

A grammar rule, however true it is, is useless unless it can be understood. 一條語法規則，不管如何正確，除非能懂，否則毫無用處。

I’d rather have a room of my own, however small it is, than share a room. 無論房間多么小，我寧愿一個人住一間，也不愿意與別人合住一個房間。

另外，however 還引導方式狀語從句。如：

The painting looks wrong however you look at it. 這張畫不論怎么看都顯得不對勁。

This was a selling job, however you look at it. 不管你怎么看待這個工作，它還是個銷售的工作。