It is increasingly clear that more and more students prefer studying overseas to continuing their higher education in local schools. While this trend can bring about advantages to the students and their home countries, there will also be some disadvantages.
On the one hand, there are several reasons why studying abroad is beneficial to both students and their home countries. Firstly, foreign universities with prestigious position may offer better facilities and lecturers equipped with professional knowledge, which could open the door for a better career opportunity. Secondly, countries who sponsor students to study in the developed countries would expect those students would bring advanced technique back to their hometown to develop national economy, especially in science and technology fields. For example, according to some observers, the rapid development of Chinese economy primarily thanks to Chinese overseas students studying in the advanced countries.
On the other hand, it is obvious that disadvantages could arise to both international students and their own governments. One clear evidence is that if students study in another country without funding from government, they will have to bear all the financial burdens, which forces them to work harder in their free time and spend less time on their studies. Furthermore, offering scholarship will increase national economy pressure and take the risk of facing the “brain drain” problems. Take Vietnam as an example, in recent years, it is common that mostly half of Vietnamese international students decide to stay abroad instead of return their home country.
In conclusion, the number of international students in the developed countries is increasing. This trend could benefit the students themselves and their home countries, but also bring about some drawbacks for both sides. 
It is  
increasingly
  clear
 that more and more  
students
 prefer studying overseas to continuing their higher education in local schools. While this trend can bring about advantages to the  
students
 and their home  
countries
, there will  
also
 be  
some
 disadvantages.
On the one hand, there are several reasons why studying abroad is beneficial to both  
students
 and their home  
countries
.  
Firstly
, foreign universities with prestigious position may offer better facilities and lecturers equipped with professional knowledge, which could open the door for a better career opportunity.  
Secondly
,  
countries
 who sponsor  
students
 to study in the developed  
countries
 would  
expect
 those  
students
 would bring advanced technique back to their hometown to develop national economy,  
especially
 in science and technology fields.  
For example
, according to  
some
 observers, the rapid development of Chinese economy  
primarily
 thanks to Chinese overseas  
students
 studying in the advanced countries. 
On the other hand
, it is obvious that disadvantages could arise to both international  
students
 and their  
own
  governments
. One  
clear
 evidence is that if  
students
 study in another  
country
 without funding from  
government
, they will  
have to
 bear all the financial burdens, which forces them to work harder in their free time and spend less time on their studies.  
Furthermore
, offering scholarship will increase national economy pressure and take the  
risk
 of facing the “brain drain” problems. Take Vietnam as an example, in recent years, it is common that  
mostly
 half of Vietnamese international  
students
 decide to stay abroad  
instead
 of return their home country. 
In conclusion
, the number of international  
students
 in the developed  
countries
 is increasing. This trend could benefit the  
students
 themselves and their home  
countries
,  
but
  also
 bring about  
some
 drawbacks for both sides.