U字母开头的单词或词组(第5页)：

• underestimate
• underlie
• uneasy
• up and down
• understood
• upper-left
• used to do sth.
• uncertain
• uninhabited
• unrest
• unconditional
• unwary
• unbearable
• unjust
• unwilling
• under the name of
• uncomfortably
• unfit
• underwear
• update
• Uluru
• upside down
• Uganda
• up to now
• unfortunately
• unspoken
• unexpected
• unpaid
• unbelievable
• university student
• use a computer
• UK
• UNICEF
• uncrowded
• unfamiliar
• underwater
• use up
• uncountable noun
• unknown
• unhappiness
• unlucky
• uncomfortable
• unpopular
• unfriendly