therefore和howerer的区别 however therefore区别
thereby\u548ctherefore\u7684\u533a\u522btherefore
1.\u7ed3\u679c\uff0c2.\u7528\u4e8e\u5bf9\u67d0\u4e8b\u7269\u8fdb\u884c\u63a8\u8bba
thereby
1.\u56e0\u4e3a\u67d0\u67d0\uff0c\u4ece\u800c\u4e0e\u67d0\u4e8b\u6709\u5173\u8054\u65f6\u7528\u3002
thereby\u662f\u501f\u4ee5\u3001\u4ece\u800c\u3001\u7531\u6b64\u7684\u610f\u601d\uff0c\u662f\u4e00\u4e2a\u8868\u76ee\u7684\u8fde\u8bcd.
\u4f8b\u53e5\uff1a
They paid cash, thereby avoiding interest charges.
\u4ed6\u4eec\u4ed8\u7684\u662f\u73b0\u91d1\uff0c\u4ee5\u514d\u4ed8\u5229\u606f\u3002
therefore\u662f\u4e3a\u6b64\uff0c\u56e0\u6b64\uff0c\u6240\u4ee5\u7684\u610f\u601d\uff0c\u662f\u4e00\u4e2a\u8868\u56e0\u679c\u7684\u8fde\u8bcd.
\u4f8b\u53e5\uff1a
He studies hard, therefore he can past the exam.
\u4ed6\u5b66\u4e60\u5f88\u52aa\u529b\uff0c\u56e0\u6b64\u4ed6\u80fd\u591f\u901a\u8fc7\u8003\u8bd5\u3002
\u597d\u50cf\u662f\u6709\u4e2a\u540e\u9762\u8981\u52a0\u9017\u53f7\uff0c\u4e00\u4e2a\u4e0d\u7528\u52a0\u3002
两者都是副词，但用法有所不同。1.Therefore 所以，因此。一般用于句中。而且不需要逗号。
Eg: This engine uses less fuel and is therefore better for the environment.
这种引擎节省燃料，因此对环境伤害较小。
2.However 一般在句中位于逗号之后。
1）尽管如此（用于补充令人吃惊的事情或话语，裹着补充人们无法从你刚才所说的话中所能才想到的事实或话语）
2）不论如何
Eg:She always goes swimming,however cold it is.
不论天气多么寒冷，她都坚持去游泳。
3）又作how ever.到底，究竟（用于吃惊的询问某事是如何发生的）
Eg:However did you get here?
你究竟是怎样到这里来的？
前者是因此，后者是然而。不过用法差不多，都要加逗号。（我们老师说的）
therefore:因此，因果关系连词
例句：It rained last night.Therefore, the ground is wet today.
however:但是，转折关系连词
例句：It rained last night.However, the ground is still dry today.
therefore 表因果关系howerver 表转折
前者是带因果关系,后者是转折关系,看前后句意就好
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