如果有电话打来，就说你吃完饭再回电话。If the phone rings say you'll call back after dinner.他一吃完就告辞离开了。As soon as he'd finished eating, he excused himself.佩奇医生一吃完午饭就会来这儿看她。Doctor Paige will be here right after lunch to see her....

“吃完”的英语可以翻译为：mop up ...