Fēizhōu hěnduō guójiā zài èrshí shìjì bǎituō le zhímín zhǔyì de tǒngzhì.
Many African countries threw off colonial rule in the twentieth century.
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殖 means to settle and multiply, the same character as in 繁殖 "to breed", so 殖民 is planting people in another land. Related words: 殖民地 colony, 殖民者 colonizer.