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...
Holidaymakers should beware of using plastic cards in foreign cash dispensers.外出度假时，在外币取款机上使用银行卡一定要小心。Cash dispensers are used and some are also available to credit card holders.自动取款机被投入使用,其中一些也能为信用卡持有者使用.Some water disp...