Canada braces for retaliation over Chinese diplomat's expulsion
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China says expulsion of Canadian diplomat was "just and necessary"
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Conservative MP Chong on expulsion of Chinese diplomat | Diplomat Zhao Wei expelled
Expulsion, or permanent exclusion, refers to the removal or banning of a student from a school system or university due to persistent violation of that institution's rules, or for a single offense of marked severity. Laws and procedures regarding expulsion vary between countries and states.