a system of ropes and pulleys绳索滑轮系统Levers and pulleys are simple machines.杠杆和滑轮是简单机械.Among them were rickshaw pulleys, peddlers, policemen and servants.这些人有的拉车,有的做小买卖, 有的当巡警,有的当仆人....
Block and tackle: Combination of pulleys with rope or cable, commonly used to augment pulling force.滑轮和滑车组: 带绳索和缆绳的滑轮组, 通常用于增大拉力.Levers and pulleys are simple machines.杠杆和滑轮是简单机械.Among them were rickshaw pulleys, peddler...
教学形式为讲座和研讨课。Teaching is by lectures and seminars.我研讨这一问题,不怀任何偏见.I looked into the problem without jaundice of any kind.本课程为期两年，授课形式为讲座与研讨。This is a two year course taught by means of lectures and seminars....
那名女歌手依旧穿着非常暴露的服装，完全不似她这把岁数。The singer continues to defy her age by wearing the scantiest of outfits.要尊重当地的礼节。朴素端庄的衣着往往比暴露的短裤和紧身上衣更合适。Respect the local etiquete. Modest clothing is often preferable to revealing shorts and...
玛格丽特总是调皮捣乱，而且一意孤行。Margaret was always mischievous and set on her own individual course.很抱歉,我的儿子昨天在你家里捣乱.I'm sorry my boy was acting up in your house yesterday.任何人再捣乱都将被押出会场.Anyone who interrupts again will be escort...
Functions : lower the blood pressure and blood fat, prevent from cardiovascular diseases.降血压、降血脂 、 预防脑血栓等心脑血管疾病.To prevent from speaking or crying out by using a gag.堵住嘴塞住嘴以防说活或喊叫.It could prevent from dust , dirty as we...