Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
Mary McCarthy s satires 讽刺文学 are couched in a prose style that has a classic precision.
The wheels of the first road vehicles were fashioned from crude stone disks.
The first important exposition in the United States was held in Philadelphia in 1876.
People who do not sleep enough tend to become irritable .
Thewheelsofthefirstroadvehicleswerefashionedfromcrudestonedisks.