You've taken the wrong seat.

你坐错座位了。

Because he thinks it is his seat.

因为他认为那是他的座位。

Abdullah leapt out of his seat.

阿卜杜拉从座位上跳了起来。

Dave could not find a seat in the room.

戴夫在房间里找不到座位。

She tumbled down into the pilot's seat.

她跌坐在驾驶员的座位上。