They are basically twins and they are connected.

它们可以说胞胎，有联系的。

I still have a problem telling the twins apart.

我仍然分不清这对胞胎。

And still no sign of a true Earth twin.

仍然有迹象显示有类似地球的行星。

You think you're gonna steal those twins?

你以为你们能拐走对胞胎吗？

An alien astronomer might see it as Earth's twin.

一个外星天文学家会将它视作地球的胞胎妹。

Only identical twins are eligible. It's a twin study.

错，但只限胞胎 胞胎研究。

What many people don't know is that Apollo had a twin.

但很多人不知道的阿波罗还有个“胞胎”。

Venus and Earth are almost twins in a lot of ways.

金星和地球在许多方面就像胞胎。

I understand we look similar, but I already have a twin.

我知道我们看起来很像，但我已经有一个胞胎了。

" Is she dead? " repeated the inquisitive twin trotting at his side.

“他死了吗？”好发问的多生子吧嗒吧嗒跟他走着，又问。

The keeper will swap the twins up to ten times a day.

饲养员每天会交换这对胞胎多达十次。

His brother Mark Kelly is an identical twin and a former astronaut.

他的同卵胞胎Mark Kelly之前也宇航员。

It's referred to as earth's twin.

也被称为地球的孪生。

Every particle discovered by scientists has a twin.

科学家发现的每一个粒子都有孪生体。

I can't tell one twin from the other, they look just alike.

我无法分辨出这两个胞胎，他们长得几乎一样。

One of my friends is a twin, too.

我的朋友也胞胎之一。

This week, I'm going to need some help from my favourite twin.

这一周我会需要我最爱的胞胎来帮我上课。

And rare conjoined gray whale twins were found dead in a Mexican lagoon.

一对罕见的灰鲸连体胞胎的尸体出现于墨西哥湖。

It's Ron's elder brother, the Weasleys twins.

罗恩的胞胎哥哥。

But he wakes up the twins and they start their crying. They cry all day.

但他把胞胎吵醒了，他们哭哭啼啼，闹了一整天。