up-and-down
英：['ʌpən'daʊn] 美： ['ʌpən'daʊn]
up-and-down 基本解释
adj.上上下下的；起伏的；来来往往的；变动的
英英释义
up-and-down[ 'ʌpən'daun ]
adv.moving backward and forward along a given course同义词：up and down
alternately upward and downward同义词：up and down
up-and-down 相关例句
双语例句
用作形容词(adj.)- 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。 - The landscape is made up of low, rolling hills.
此地的地貌为低矮起伏的丘陵。 - 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。 - He put up a notice about the change in price.
他张贴一则有关价格变动的布告。 - 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。
权威例句
Up and downStaircase bioassay: the up-and-down method.Up-and-down regulation of skeletal muscle acetylcholine receptors. Effects on neuromuscular blockersThe Up-and-Down Method with Small Samples*Advances in and limitations of up-and-down methodology: a precis of clinical use, study design, and dose estimation in anesthesia re...Improved up-and-down designs for phase I trials.Comparison of the up-and-down, conventional LD50, and fixed-dose acute toxicity procedures.Dose finding using the biased coin up-and-down design and isotonic regressionThe up-and-down of hepatic stellate cells in tissue injury: apoptosis restores cellular homeostasisNon-Parametric Up-and-down Experimentation
