overseas和foreign这两个词汇天天都能看见，难道是通用的吗？请看：
1. overseas adj.外国的;海外的(指来自、存在于或发生在海外国家的，只作定语。)
There are many overseas students now coming to China to study Chinese.
现在有很多外国留学生来中国学习汉语。
The company has invested more money into its overseas market.
该公司已经将更多的资金投入了海外市场。
Every year nine million overseas visitors come to London.
每年有900万外国游客来伦敦观光。
verseas development/markets/trade
海外发展 / 市场 / 贸易
overseas students/visitors
外国留学生 / 游客
They do a lot of business in lucrative overseas markets.
他们在利润丰厚的海外市场上生意很多。
Looking forward, we hope to expand our operations in several of our overseas branches.
展望未来，我们希望拓展其中几家海外分公司的业务。
The company is girding its loins for a plunge into the overseas market.
公司正准备打入海外市场。
He has returned to South Africa from his long overseas trip.
他结束了漫长的海外旅行回到南非。
The dollar's recent strength is crimping overseas sales and profits.
美元最近的坚挺影响了国外的销量和利润。
A lot hinges on how we are viewed by overseas investors.
很多事都取决于海外投资者对我们的看法。
They are no longer part of a duopoly on overseas routes.
他们不再是垄断海外航线的两强之一。
Candidates in India are advised to submit their applications through the overseas student office in London
印度的申请人被告知通过驻伦敦的海外学生办公室递交申请表。
The prices of overseas holidays are subject to surcharges.
海外度假游的价格受各种附加费的影响。
I'd like to place an overseas call.
我想打一个国际长途。
adv.在国外;在海外
live/work/go overseas
在国外生活 / 工作；出国
The product is sold both at home and overseas.
这个产品行销国内外。
2．foreign, adj 外国的，国外的; 外交的;非典型的;陌生的；普通用词，泛指来自他国的或与他国有关的。
After living in foreign countries for many years, he returned home.
在国外居住多年之后，他回到了家。
All foreign troops must be withdrawn immediately and unconditionally.
所有外国军队必须立即无条件地撤出。
a foreign accent/language/student
外国口音 / 语言 / 学生
foreign holidays
外国假日
a foreign-owned company
外资公司
foreign affairs/news/policy/trade
外交事务；外国新闻；对外政策 / 贸易
the German foreign minister. 德国外交部长
foreign aid
外援
Dishonesty is foreign to his nature.
弄虚作假并非他的本性。
The very notion of price competition is foreign to many schools.
价格竞争这个概念对于许多学校都很陌生。
She didn't know what life in a foreign country would be like.
她不知道外国的生活会是什么样。
Video is a good medium for learning a foreign language.
录像是一种学习外语的好方法。
All the children must learn a foreign language.
所有的儿童必须学一门外语。
You could tell she was foreign by the way she dressed.
从她的穿着就可以看出她是外国人。
The people in the hotel were mainly foreign tourists.
酒店里住的大多是外国游客。
Foreign visitors help to give a truly international flavour to the occasion.
外国客人使这个场合显出一种真正国际性的气氛。
The college runs summer courses for foreign students.
这所大学为外国学生开设暑期课程。
The company is now well positioned to compete in foreign markets.
现在这家公司已准备好在国外市场竞争。
He had a very distinguished career in the Foreign Office.
他在外交部有过一段光辉的事业。
Small traders cannot compete in the face of cheap foreign imports.
面对廉价的外国进口商品，经营规模小的商人无法与之抗衡。
The possession of a passport is essential for foreign travel.
出国旅行必须持有护照。
Tourism is the country's biggest foreign currency earner.
旅游业是这个国家赚取外汇最多的行业。
