Tissue microenvironment plays a critical role in guiding local cell differentiation.组织微环境在局部干细胞的分化过程中扮演了至关重要的角色.Objective. The extracellular microenvironment directly affects metastatic chordoma cell phenotype in vitro.目...
He gads about a lot.他到处游荡.He gads about Europe a lot.他常到欧洲漫游.E - woes, E - gads [ China Business , Economist Intelligence Unit , April 15, 2002 ]电子商务 的悲哀与惊奇 [ 经济学家情报联合会, 2002年4月15日 ]...
Police cars, their sirens wailing, accompanied the lorries...警车护送着大卡车，一路警笛长鸣。The fire engines were just pulling up, sirens blaring...消防车正要停下来，警报器发出刺耳的声音。On large ranches, copters have sirens for scaring out cattle lost i...