I'll have to stand up and let the elderly lady have my seat.
我得起来把座位让给这个老婆婆。
I ought to go to work now.
我应该现在去工作。
Pierre and I borrowed the money and bought the necklace. During the next ten years we both worked day and night to pay back the money we had borrowed. That's why I now look so old. Well, after all these years we've at last paid back all the money.