用法:
1 type of bag fixed to a frame, used for carrying a young baby onthe back （背负幼儿用的）有框架的背袋.

用法:
2 N AmericanIndian baby 北美印第安人的幼儿.

• unassuming
• unavailable
• unavailing
• unavoidable
• unaware
• unbecoming
• unbend
• unbiased
• unbidden
• unblemished
• unbridled
• uncanny
• unchangeable
• uncharitable
• uncharitableness
• uncharted
• unchecked
• uncommitted
• uncommon
• uncommunicative
• uncomplicated
• unconcern
• unconfirmed
• unconscionable
• unconscious