2、用來給出方式或原因，意為“以，憑借；因為，由于”，例如：

　　You can only achieve success through hard work.你得孜孜不倦方能成功。

　　It is through your own fault that you lost this opportunity.你失去這個機會是由于你自己的過錯。

　　The accident happened through no fault of mine.事故不是我的錯。