单词：ratchet-tooth lever escapement
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Once upon a time there was a princess who was ever so proud: if any man came to woo her she would set him a riddle, and if he couldn't guess it he was laughed to scorn and sent packing. She also had it made known that whoever did guess the answer to
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Tom is applying for a job as a signalman for the local railroad, and is told to meet the inspector at the signal box. The inspector decides to give Tom a pop quiz, asking, What would you do if you realized that two trains were heading towards each ot
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What If... 如果怎么样 Tom is applying for a job as a signalman for the local railroad. 汤姆在应聘做地方铁路系统的信号员。 The inspector decides to give Tom a quiz, asking, What would you do if you realized that two trains were h
英语小达人
今天我们要学的词是ratchet。 Ratchet是一个机械部件，叫棘轮，推动机器向一个方向转动。做为动词，我们可以说: ratchet something up or ratchet something down, 意思是逐渐提高或是逐渐降低。 哈佛大学
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乔治桑（George Sand）曾经说过 There is only one happiness in life, to love and be loved. （生命里只有一种幸福：爱与被爱。）正所谓一杯白水，一口干粮，只要爱人在我身旁，荒漠也会变成天堂！找到了那
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