格林威治天文台的职员们每天对大钟检查两次.Officials from Greenwich Observatory have the clock checked twice a day.盖伊的房子离天文台很近.Guy's house was close to the observatory.应立即通知附近的天文台.The nearest research observatory should be contacted righ...
A dwarf going upstairs getting higher step by step.矮子上楼梯,步步登高.The dwarf shrugged his shoulders and shook his head.矮子耸耸肩膀,摇摇头.While he was yet in unspeakable agonies, the dwarf renewed their conversation.他还没来得及摆脱这种难言的痛苦时,...
The colorimetric methods involve the bleaching of a preformed color by the fluoride ion.比色法涉及氟离子对预先形成的颜色的消色作用.In no way am I going to adopt any of his methods.我绝对不会采纳他的任何方法。...traditional teaching methods.传统教学方法According...