It's high time
... It's Greek to me. 对我犹如天书;我莫名其妙 it's high time 是...的时候了 ... It\'s been reserved. 这张桌子已经有人定了. ...
be
... BC (B.C.)公元前来源:考试大 be v.(就)是,等于;(存)在;到达,来到,发生 beconcernedwith 关心,挂念,从事于 ...
are
... cow,奶牛 are,(用于第二人称单复数现在时,第一、三人称复数现在时)是 am,(用于第一人称单数现在时)是 ...
be short for
... learn more about了解更多的关于. be short for是.的简称 in the north of chin a在中国北部 ...
"是"是个多义词,它可以指是(汉字),是(秘鲁刊物)。