The old couple has already been married for fifty years.
那对老夫妻结婚已经 50 年了。
If you hadn't slipped and fallen,you wouldn't have broken your leg.
如果你没滑倒,你就不会断腿了。
It's quite simple. You put a very hot, wet cloth on your shoulder for one minute. Then put a packet of frozen peas on the shoulder for one minute. And so on and so on.