1.Experience is not have done, it is what you have learned while doing it! 經驗不是你曾經做過什么，而是你在做的過程中學到了什么！

　　2.While doing experiments, you must make careful observations. 做試驗時，你必須仔細觀察。

　　3.While doing the business she is having two young children to care for. 她邊做生意邊照料兩個年幼的.孩子。

　　4.He had met her while doing a corporate job. 他是在一次合作項目中遇到她的。

　　5.He likes to listen to music while doing his homework. 他喜歡一邊做作業(yè)，一邊聽音樂。