Set foot in/on (idiom)

　　●To visit; to go to a place.（踏足）

　　Examples:　　

　　1.Most people who live in New York have never set foot in the Statue of Liberty, which is, of course, right in the middle of New York harbor.　　

　　2.It was the first time she had set foot in the desert.

　　Render (verb)

　　●To provide or give.（給予，提供）

　　Examples:　　

　　1.We see that freight railroads make good profits while rendering excellent service.　　

　　2.She would render assistance to those she thought were in need.

　　Take the lead (in doing sth) (idiom)

　　●To be the first to start doing something or be most active in doing something.（領先，率先）

　　Examples:　　

　　1.The U.S. took the lead in declaring war on terrorism.　　

　　2.She took the lead ten miles into the marathon.

　　Food for thought (idiom)

　　●Something worth thinking about seriously.

　　（精神食糧，發人深思的觀點或事物）

　　Examples:　　

　　1.Thanks for your suggestion - it gave us lots of food for thought. My adviser gave me some food for thought about job opportunities.　　

　　2.Your essay has provided me with some interesting food for thought.

　　Brace up (phrasal verb)

　　●To be strong or courageous.

　　Examples:　　

　　1.Brace up! Things could be worse.　　

　　2.I told John to brace up because things would probably get worse before they got better.