While eating in a restaurant，I reprimanded my fouryearold son for speaking with his mouth full。“Mump umn Kmpfhm”was all I heard。
“Drew”I scolded，“no one can understand a word you are saying。”
“He says he wants some ketchup”my husband said calmly。
A woman sitting nearby leaned over and asked，“How in the world did you understand him？”
“I am a dentist”my husband explained。
我懂他的话
在饭店吃饭的时候，我申斥我4岁的儿子，因为他满嘴食物在说话。“喔、呢”，我听到的就是这些。
“祖，”我责备道，“没人明白你在说什么。”
“他说他要一些番茄酱，”我丈夫平静地说。
坐在旁边的一位妇女靠过来问道：“你究竟如何明白他的话的呢？”
“我是牙医。”我丈夫解释道。
reprimand[reprim？：nd]n。训斥，惩戒vt。申斥，惩戒，谴责
例：She was reprimanded for failing to do her duty。她因失职而遭到了训斥。
scold[skuld]vt。＆vi。责骂，斥责
例：She is always scolding。她总是骂个不停。
ketchup[ketp]n。番茄酱
例：There is a spot of ketchup on the tablecloth。桌布上有一点番茄酱的渍斑。in the world与on earth
in the world意为“世界上，究竟，到底”，如：
What in the world do you mean？你的意思究竟是什么？（强调疑问词）
He is the richest man in the world。他是世界上最富有的人。（强调形容词最高级）
on earth意为“世界上；究竟，到底”，如：
He is ready to do anything on earth to better his fortunes。他准备在世上干点什么以便交上好运。
What on earth is the matter there？那里究竟发生了什么事情？
关于mouth的习惯用语
A close mouth catches no flies。[谚]嘴唇闭紧，苍蝇难进；口紧不招祸；祸从口出。
button up one’s mouth[口]保持缄默
close[shut]one’s mouth闭嘴，不作声
down in[at]the mouth沮丧，垂头丧气
flap sb。in the mouth（with a lie）对某人当面撒谎
from hand to mouth现挣现吃
from mouth to mouth口口相传；挨次轮流讲述