my brother was fond of playing football,__my sister liked going swimming.

问题描述:

my brother was fond of playing football,__my sister liked going swimming.
空格处为什么要填while?这是并列句吗?

翻译的时候可说“我哥哥喜欢打篮球,我姐姐喜欢游泳”,关联词可不翻译,但是英语中一句话的两短句之间必须用关联词,不然是语法错误.