人口稀疏的新加坡岛于1819年割让给英国东印度公司，新加坡城在同一年由托马斯·拉弗尔斯爵士建立。

The sparsely populated island of Singapore was ceded to the British East India Company in 1819, and the city was founded the same year by Sir Thomas Raffles.

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但是当某一地区的人口由稀疏和稠密转化的时候，头盖骨的尺寸会减小。

But when a certain area's population changed from sparse to dense, our cranium size decreased.

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它的领土更为广阔，且更为富饶，人口稀疏，国家的归属感更为脆弱。

Its territory and wealth are greater, its population sparser, its sense of nationhood more fragile.

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