颊窝毒蛇的毒牙是长的空心管子.The fangs of pit vipers are long, hollow tubes.只有四分之一的蛇具有毒液和毒牙.Venom and fangs are found in only a quarter of all known snakes.在蛇的进化史上,毒牙的出现是新的进步.A more recent advance in the evolutionary story of snakes i...
断骨被十分小心地接合复位。Broken bones were painstakingly pieced together and reshaped.医生能使骨折或脱臼复位.A doctor can reduce a fracture or dislocation.有的人会巧用推拿术使扭伤的关节, 例如肩膀复位.Some people can put back a twisted joint, like the shoulder, by ...
He was known for his poor grammar and punctuation.他不通语法和乱用标点是出了名的。At his grammar school he is remembered for being bad at games.在文法学校他因不善于玩游戏为大家所熟知。He is in the third year at Leeds Grammar School.他在利兹文法学校念3年级。...
我的背包太大了，行李架上放不下。My rucksack was too big for the luggage rack.回首过去，她觉得自己真不该放下背包不再徒步旅行。Looking back, she feels she should never have hung up her backpack.查利费力地将背包背到楼上自己的公寓里。Charlie humped his rucksack up the stairs to his ...
他傲慢无礼地朝元先生冲过来，面露怒容。He came insolently towards Mr. Won, his features set in a scowl.“哦，我们很乐意！”南希面露喜色，大声说道。"Oh, we'd love to!" cried Nancy, her face brightening.他们匆匆地走来走去，一言不发，面露焦急之色。They hurried about in dead silence...
Keywords multimedia network teaching; network courseware; didactical resource.[关键词]媒体网络教学; 网络课件; 教学资源.The Computer - Assisted Instruction [ CAI ] has long been proved is an effective didactical means.计算机辅助 教学,作为一种新型的教学手段...