入国问禁的英文：
do in rome as rome does
"When in Rome, do as the Romans do"
入国问禁,入乡随俗
n. 罗马(意大利首都),[史]罗马(古意大利一城邦,后发展成为罗马帝国)
All roads lead to Rome
条条大路通罗马
All roads lead to Rome.
殊途同归
Rome was not Built in one day
罗马非一日建成
There is no royal road to Rome
学问无坦途
Rome was not Built in a day
冰冻三尺非一日之寒
v. 做，进行；完成；引起；整理；洗涤；学习，研究；足够，适合；解答；烹调
n. 宴会；事件；诈骗；规定；必须做到的事情
Do in Rome as the Romans do
入乡随俗
You do fractions, then you do decimals.
你先学习分数，然后，学习小数。
Do it for this once.
就干这一次吧。
But will it do execution?
但它能奏效吗？
Do you have this in a petite?
这个样子有小号的吗？