涉外经济的英文：
foreign-related business
adj. 外国的；不属于本身的；无关的；外交的；陌生的
In the UK, there are the Foreign Office and Foreign Secretary.
在英国，有外交部和外交大臣。
custom of foreign trade.
对外贸易惯例
The guidebook is for the accommodation of foreign tuorists.
这份指南是为了方便外国游客而准备的。
adj. 有关联的；叙述的
v. relate过去式和过去分词
incidence relation
关联关系
Curious to relate, the giraffe has no voice.
说来奇怪，长颈鹿不会出声。
Of, relating to, or being a real number.
实数的实数的、是实数的或与实数有关的
n. 商业，交易，生意；公司，商店；事情；职责
Be engaged in; be Busy in
从事于
to sit for business
因公滞留
As Busy as a bee
(象蜜蜂)忙忙碌碌的