| 单词 | bone up |
| 释义 | bone upSEE SYNONYMS FOR bone up ON THESAURUS.COM verb(adverb; when intr , usually foll by on) informal to study intensively Words nearby bone upbone shaker, bones of digits, bone to pick, bone to pick, have a, bone turquoise, bone up, boneyard, bonfire, bong, bongo, bon gré, mal gré Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Idioms and Phrases with bone upbone up Study intensely, as in I'll have to bone up on my Spanish if I'm to pass the language requirement. The verb bone alone was used in this sense from the mid-1800s on, up being added later. [Slang; late 1800s] The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. |
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