This lets the person know your plate is full at the moment, so he/she should hold off on this as well as future requests.
这样说能让请你帮忙的人知道你的行程目前是满的，因此他/她会放弃请求，甚至以后也不会轻易打扰你。
2
The little boy of the family left the room quietly for a moment and returned with a piece of cheese which he laid on the guest's plate.
这家的小男孩悄悄地离开了屋子。过了一会儿，他拿着一片奶酪回到房间，把奶酪放在客人的盘子里。
3
He looked out the large plate glass window, studying the morning sunlight that dappled the trees and cars parked along the street. He waited a long moment before speaking again.