用法:
1 (sometimes derog 有时作贬义) class of (esp industrial and manual) workers who do not own the means of production and earn their living by working for wages 无产阶级; （尤指）工人阶级:
The dictatorship of the proletariat is one of the aims of Communism. 无产阶级专政是共产主义的目标之一. Cf 参看 bourgeoisie (bourgeois).

用法:
2 (in ancient Rome) lowest class of citizen, owning no property （古罗马）民众中一无所有的最下层阶级.

• the Supreme Soviet
• the synoptic gospels
• the third dimension
• the Third World
• the three Rs
• the triple jump
• the unconscious
• the undermentioned
• the underprivileged
• the undersigned
• the unemployed
• the unexpected
• the Union Jack (also the Union flag)
• the United Kingdom (abbr 缩写 (the) UK)
• the United Nations (abbr 缩写 (the) UN)
• the United States (of America) (abbrs 缩写 (the) US, USA)
• the unwaged
• the unwary
• the Upper Chamber (also the Upper House)
• the utmost (also the uttermost)
• the vitals
• the weak
• the West Country
• the West End
• the White House