up-and-down
		
		
					
									英 
											['ʌpən'daʊn]
																 美 
											['ʌpən'daʊn]
										
													美 
											['ʌpən'daʊn]
																 
										
							 
		
	 
 
	
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																	副词 up and down:
									
																				- 
										moving backward and forward along a given course										
																				 
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										alternately upward and downward										
																				 
 
 
 
 
 
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																							用作形容词																						(adj.)
											
										 
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												All over the ship the bulkheads sweated a film of oil and water.												
 船里上上下下的舱壁到处沾着一层油水。
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												The landscape is made up of low, rolling hills.												
 此地的地貌为低矮起伏的丘陵。
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												She watched the gentle rise and fall of his chest as he slept.												
 她看着他睡着时微微起伏的胸膛。
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												He put up a notice about the change in price.												
 他张贴一则有关价格变动的布告。
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												New words and meanings keep the English language in a state of flux.												
 新的字和新的字义使英语处于不断变动的情况中。
 
 
 
 
 
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	海词词典,十七年品牌