同步进行时的连接词

and，but，while，as，when等都可以做同步进行时的连接词

例如1：I am watching TV and he is reading a book.我在看电视他在看书。

2：The girl is laughing，but /while the boy is crying 那个女孩在笑而那个男孩在哭。

3：My daughter was singing when I was painting.当我画画的时候我女儿在唱歌。

4：He is listening to music as he is doing his homework.他一边做作业一边听音乐。

希望我的回答能帮到你