我在做饭，与此同时，孩子们在玩耍。
I am cooking, at the same time, the kids are playing.
他在开车，与此同时，他在打电话。
He is driving, at the same time, he is talking on the phone.
我们可以吃晚饭，与此同时，讨论一下计划。
We can have dinner, at the same time, discuss the plan.
她在听音乐，与此同时，她在写信。
She is listening to music, at the same time, she is writing a letter.
他在做作业，与此同时，他的妹妹在看电视。
He is doing his homework, at the same time, his sister is watching TV.
