■ complement 与 compliment

是两个不同的单词，各种词典上都可以看得很清楚。但是发音相同，所以美国人也常常弄错。

• The two characters are complementary to each other.两个角色互为补充。

• unhuman
• unilateral
• unilateral 与 one-sided
• uninterested
• union
• 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