单元：WordList21.txt

• comprise
• revolt
• expense
• campus
• mold
• insure
• cash
• virtue
• violent
• react
• odd
• diverse
• manual
• uncover
• ban
• confront
• undergo
• journal
• emperor
• undergraduate
• circular
• dictate
• inform
• underground
• hook
• underline
• male
• proceed
• hydrogen
• force
• fog
• fluid
• drill
• understanding
• nitrogen
• commission
• jaw
• undertake
• salary
• skilled
• assembly
• merry
• undo
• undoubtedly
• global
• uneasy
• precious
• mosquito
• petroleum
• favourable
• sightseeing
• economic
• multiple
• poverty
• rely
• effort
• accumulate
• cheat
• humorous
• rare
• rival
• echo
• investment
• collapse
• corridor
• despite
• pit
• counter
• balcony
• diplomatic
• cigar
• bathe
• conquer
• inflation