because是什么意思英语

　　例句：

　　1.I did it because they asked me to do it!

　　我做这事是因为他们请我做啊！

　　2.Jack duked me because he said I had insulted him. partly because 部分原因是

　　杰克用拳猛击我，因为他说我侮辱了他。

　　3.The electricity wastes because they often forget to turn it off.

　　因为他们常常忘记关电源，所以费电。

　　4.I can't do it now because I am busy.

　　因为我正忙着，现在不能做此事。

　　5.The dog was panting because of the hot weather.

　　因为天热这只狗不停地喘气。