He suggested a link between class size and test results of seven-year-olds.他认为7岁大的学生的测试分数和班级的规模有关系。The report suggested that the same trend was at work in politics.这份报告表明，同一趋势也在影响着政治。The doses I suggested for adults coul...
From the looks on their faces, I surmised that they had had an argument.看他们的脸色，我猜想他们之间发生了争执。From his letter I surmised that he was unhappy.我从他的信中推测他并不快乐.He surmised that he had discovered one of the illegal streets.他推测自己...
碳的诸多同位素the many isotopes of carbon氚是最和缓的放射性同位素之一.Tritium is one of the mildest radioactive isotopes.激光可以改变这种局面,从而使同位素分离变得比较容易 、 比较廉价一些.Lasers promise to change this by making isotope separation easier, and cheaper....