The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.
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The Native American interpreter Sacajawea was a valuable member of the Lewis and dark expedition in 1805.
Solid geometry has enabled astronomers to calculate the positions of the heavenly bodies relative to one another.
Inliterature,caricatures讽刺画usuallycontainverbalexaggerationthroughwhichthewriterachievescomicandoftensatiric讽刺effects.
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
Communicationisoneofthemostimportantbondsthatholdculturalsystemstogether.