Notice that the energy eigenvalues are not equally spaced.注意,这些本征值并不是等距离分布的.The n roots of this equation are called the eigenvalues.这个方程A的 n根叫做特征值.The n roots of this equation A are called the eigenvalues.这个方程的n根叫做A的特征值....
Unfortunately, Grandma always seems to awaken at awkward moments.不幸的是，奶奶好像总是醒来的不是时候。Malcolm worked up the nerve to ask Grandma Rose for some help.马尔科姆鼓起勇气请罗丝奶奶帮点忙。We listened with bated breath to Grandma's stories o...
她十六岁，而智力年龄是五岁。She is sixteen but has a mental age of five.她十六岁时进了修道院.She entered a convent at the age of 16.他参军时刚刚十六岁.He was scarcely sixteen when he joined the army....
She cooked pease - pudding, and baked the bread and made cowslip wine and cherry - brandy.她会做豌豆布丁, 烤面包,用黄花九轮草做樱桃白兰地.In a cowslip's bell I lie ( Shakespeare )我躺在野樱草的钟形花冠中 ( 莎士比亚 )The yellow cowslip and the pale primr...