这是我们家养过的最大的狗。

This is the ___biggest dog we've ever had in our family.

这次会议是我们公司今年最重要的事件。

This meeting is the ___biggest event for our company this year.

作为家里最大的孩子，她经常帮忙照顾弟弟妹妹。

As the ___biggest child in the family, she often helps take care of her younger siblings.