They call each other sweetheart.

他们称呼对方甜心。

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They call each other only on an intermittent basis.

他们只是断断续续的联系。

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The two become like one person, and they call each other their second self.

这些结成兄弟姐妹的人变成像一人一样，并且他们把对方叫做他们的第二个自己。

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They all tutoyer each other, even if they hate each other's politics, and they call each other by the informal name.

人们表面亲热,即使他们与对方的政见相对立,他们用非正式的名字称呼对方

耶鲁公开课 - 1871年后的法国课程节选

They call each other "brother" and "sister" and yet they're always talking about love all the time.

他们互称为兄弟姊妹“,而且还一直谈论爱。

耶鲁公开课 - 新约课程节选

So, another way to talk about dissociation energy is simply to call it bond strength, it's the same thing, they're equal to each other.

讨论离解能的另外一种方式,是直接称它为键的强度，它们是一样的，彼此相等。

麻省理工公开课 - 化学原理课程节选

They are both lawyers, who call each other Counsellor and sleep in separate beds, with a table in between.

NEWYORKER: Stormy Weather

As previously stated, both companies will furnish assets to establish what they call a new global mobile ecosystem and will compensate each other for those resources.

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We can't be sure they were discussing dinner, but scientists do think dolphins call each other by name.

CNN: Dolphins may be calling each other by name