双胞胎

The babies are identical twins. 宝宝们是同卵双胞胎。
The babies are fraternal twins. / The twins look different from each other.宝宝们是异卵双胞胎。
Their eyes, nose, and lips all look the same. 他们的眼睛，鼻子，嘴巴都看起来一模一样。
Both of them are so adorable! 两个都很可爱。
I can't tell who's who. 我不能分辨他们是谁。
Who do you think the younger one is? 你觉得谁是弟弟？
The baby who was born first is the older brother / sister.
先出生的宝宝是哥哥/姐姐。
We will need two of everything. 每一样东西，我们都需要两份。
Mommy will have twice as hard a time taking care of the twins.妈咪要照顾双胞胎，会加倍地辛苦。
It will be really nice if Jina can help Mommy. 如果吉娜能帮助妈妈，那就真的太好了。
One of my friends is a twin, too. 我的朋友也是双胞胎之一。
Let's celebrate the birth of the twins! 我们来庆祝双胞胎的出生吧！
We are now one family. 现在，我们是一家人了。