国内外的英文：
domestic and international
at home and abroad

参考例句：

It has built up a bridge to promote the cooperation among IT suppliers from both China and overseas.
它在国内外IT供应商和渠道之间传达商机、推进合作

Both domestic and overseas customers; customers both at home and abroad.
国内外客商(英美国家很少强调"国内外")

The meeting concerns both foreign and domestic policies.
会议关系到国内外政策。

domestic and overseas leading research institutes
国内外一流科研机构

Sincerely welcome visits and inquiries of Businessmen Both from home and abroad
竭诚欢迎国内外客商光临垂询。

The high-quality goods of our factory sell well both at home and abroad.
本厂的优质商品畅销国内外。

Handle all the domestic and foreign business fund transactions
可办理国内外一切资金往来业务

Our commodities fair welcomes inquiries and orders from businessmen both at home and abroad.
本商品交易会欢迎国内外客商洽谈定购。

Encourage Both Chinese and overseas investments in the central and western regions.
鼓励国内外投资者到中西部投资。

Experts and scholars from home and abroad are greatly focusing on this important discovery
国内外专家学者对这一重要发现极为关注。

domestic是什么意思：
adj. 家庭的；热心家务的；国内的；驯养的
n. 仆人，佣人

A servant, especially a domestic servant.
佣人仆人，尤指家仆

The pig is a domestic animal.
猪是一种家畜。

It was a scene of such domestic bliss.
这是一派天伦之乐的场景。

international是什么意思：
adj. 国际（上）的
n. 国际比赛；国际比赛选手

That depends on internal and international factors.
这决定于国内的因素和国际的因素。

international common
国际公地

the First International
第一国际（1864－1876）

home是什么意思：
n. 家，住宅；家庭，家庭生活；家乡；避难所；产地
adj. 家庭的；家用的；国内的；本地的
adv. 在家；回家；深入地
v. 回家；把...送回家；为...提供住处

They are rowing home.
他们正划船回家。

You will find our dorm a home from home.
你将会觉得在我们宿舍就像呆在家一样舒适。

Homing pigeons are bred for their ability to race home.
人们喂养信鸽是因为他们能够迅速找回家。