It would be very difficult to have such a long distance relationship.

隔着这么远的距离，要维持关系是很困难的。

youdao

A long distance relationship is a trial of patience for two people in love.

远距离恋爱对于相爱的两人来说是一种考验。

youdao

Keeping a long distance relationship safe is a matter of commitment for both of you.

保持一份异地恋的安全是你们两人的承诺问题。

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"I was in a long distance relationship for about a year, and Skype really helped because you could actually see the other person when you are talking."

VOA: special.2009.09.14

You've been going through a long distance relationship.

你们在谈一段异地恋。

I can't 课堂 - SpeakingMax英语口语达人

He will be in a long-distance relationship with his girlfriend after joining the Marines.

VOA: special.2009.09.14

Kaye distributed the program to 10 couples, each of which was involved in a long-distance relationship.

FORBES: Love Tech Goes Long Distance

They started a long-distance relationship between Houston and Tucson, and by 2006, Giffords and Kelly were married.

CNN: Gabby and Mark: The new 'Bradys' of gun control

But as it unfolds, and as that rest stop takes shape as a demoralizing symbol of the sacrifices inherent in a long-distance relationship, "I-95" takes on a sincere sweetness that the band wears well.

NPR: Fountains of Wayne: Long-Distance Dedication