Let's start from the seven-year itch.

让我们从七年之痒开始吧。

The old couple passed the seven-year itch a long time ago.

这对老夫妇，早就度过七年难熬症。

I joke that the four of us, and have a seven-year itch has.

我玩笑说，我们四个人，过了七年之痒了。

Forget the seven-year itch, the real test comes at TWELVE years.

“七年之痒”容易过“十二年之痒”是难关。

We often hear the couple quarrel. They must have the seven-year itch.

我们经常听见这对夫妇争吵。他们一定是处在婚后七年婚姻的不稳定期。