I'll go and see my nephew and niece next Saturday.

下礼拜六我将往看我的侄子战侄女。

youdao

I've taken my niece and my nephew there when it snowed.

我曾经在下雪的时侯，带着侄子和侄女去那里。

youdao

This year all the apples are all red. My niece and nephew are going out this morning with step-ladders to pick some.

今年所有的苹果都红了。我的侄女和侄子今天上午就要带着折梯出去摘一些。

《柯林斯英汉双解大词典》

I've taken my niece and nephew there in the snow,

我曾经在下雪的时侯，带着侄子和侄女到那里玩儿。

河滨公园 - SpeakingMax英语口语达人

My sister and my niece and nephew as well as my aunt and cousins still call me Julian, and my wife has got used to switching to Julian when we are with them.

BBC: All in a name: 25 of your changes

To be honest, I was feeling pretty negative myself until I heard that my 18-year-old niece and nephew and my 21-year-old sister have got summer jobs related to the Olympics.

FORBES: What Is London Like Leading Up To The 2012 Olympics?

He left at Christmas 1984 - him, his wife, my niece and nephew.

BBC: ��My mother would turn off the TV when she was on��