2008-04-13 周日 英语单词

**recover
__To getback;regain
__To restore(oneself) to a normal state;He recovered himself after a slip on the ice.
__To compensate for.She recovered her losses.
__To procure(usable substances,such as metal)from unusable substances,such as ore or waste.
__To bring under observation again.watching the comet since it was first recovered-first spotted since its 1910 visit.

**sacred
__Dedicated to or set apart for the worship of a deity.
__Worthy of religious veneration;the sacred teachings of the Buddha.
__Made or declared holy.sacred bread and wine.
__Dedicated or devoted exclusively to a single use,purpose,or person.sacred to the memory of her sister,a private office sacred to the President.
__Worthy of respect; venerable.
__Of or relating to religious objects, rites, or practices.

**radius
__A line segment that joins the center of a circle with any point on its circumference.
__A line segment that joins the center of a sphere with any point on its surface.
__A line segment that joins the center of a regular polygon with any of its vertices.
__The length of any such line segment.
__A circular area measured by a given radius:every family within a radius of 25 miles of the city center.
__A bounded range of effective activity or influence:the operating radius of a helicopter.
__A radial part or structure, such as a mechanically pivoted arm or the spoke of a wheel.

**rag
__A scrap of cloth.
__A piece of cloth used for cleaning, washing, or dusting.
__rags Threadbare or tattered clothing.
__Cloth converted to pulp for making paper.
__A scrap; a fragment.
__Slang A newspaper, especially one specializing in sensationalism or gossip.
__The stringy central portion and membranous walls of a citrus fruit.