MEI Shi - long , 1991 . Middle and Late Cambrian conodont and trilobite biostratigraphy in Wanxian, Hebei . Unpublished Ph. D thesis of Peking University. 武桂春, 2003. 鲁西地区晚寒武世牙形石. 北京大学博士研究生学位论文.
Leaders of the Southern states are meeting in Louisville.南部一些州的领导正在路易斯维尔开会。He said he was raised in Louisville.他说他是在路易斯维尔长大的.I took it from your mother's bureau in Louisville.我是从路易斯维你母亲梳妆台上拿来的....
a free-form jazz improvisation自由创作的爵士乐即兴演出Most of their music was spontaneous improvisation.他们的大部分音乐作品都是即兴创作的.He coached the young man in the theatre and developed his power of improvisation.他辅导那位年轻人演戏,培养他的即席表演能力....