珀西对兰花的痴迷可以回溯到1951年。Percy's enchant-ment with orchids dates back to 1951.这个城镇的历史可回溯到中世纪.The history of the town dates back to the Middle Ages.注意:我们还要回溯所忽略的字符.Note that we back up over ignored characters too....
Theresearchers studied how keratinocyte cells near the surface of skinreact to sun exposure.研究者研究靠进皮肤表层的角质化细胞是如何应对日光照射.Keratinocyte culture provides a new thought and approach for wound closure of area burned patients.表皮...
她送儿子上了东部的一所寄宿学校。She sent her son to a boarding school in the East.1875年,来自东部的拓荒者在这个地区定居下来.Pioneers from the East settled in this region in 1875.在肯尼亚东部的塔纳河一带经常发现陷入沼泽的大象。Elephants were often to be found in swamp in eastern...
这实际上已是该学说的终结，只是未被道明罢了。It's the end of the doctrine in all but name.这一研究方法与对城市发展学说的许多研究工作相吻合.This approach corresponds to much of the work done on urban - growth theory.列宁顽强地为维护马克思主义学说的纯洁性而战斗.Lenin fought stubbornly ...