expulsion
US /ɪkˈspʌl.ʃən/
UK /ɪkˈspʌl.ʃən/

1.
开除, 驱逐
the action of forcing someone to leave an organization or country
:
•
The student faced expulsion from school for cheating.
该学生因作弊面临被学校开除。
•
The country ordered the expulsion of several foreign diplomats.
该国下令驱逐数名外国外交官。
2.
排出, 喷出
the process of driving or forcing out something, especially from the body
:
•
The expulsion of gas from the volcano was a spectacular sight.
火山喷出气体是壮观的景象。
•
The body's natural process of waste expulsion is essential for health.
身体自然排出废物的过程对健康至关重要。