■ expensive

只能指商品本身，不能指其价格。

• The average man found the price pretty high (*expensive)。价格对一般老百姓来说太高了。

参见 cheap 条。

• unite
• united states
• university
• unless
• unlike
• unload
• unsatisfied
• until
• until
• until
• uphill
• up north
• upon
• upper
• up to
• up to now
• up to now 与 until
• use
• used to
• valuable
• valuable 与 invaluable
• variation
• variation 与 change
• verdict
• verge