■ boat

in a car 与 on a boat，见 bus 条。

• commit
• commitment
• common
• common knowledge
• common sense
• common sense 与 common knowledge
• communication
• community
• company
• compare
• compared
• competition
• competitive
• compile
• compile 与 compose
• complement
• complement 与 compliment
• complex
• complex 与 complicated
• complicated
• compliment
• comply
• compose
• composed
• comprise