IBM公司也把重心从特大型机转向了个人电脑。IBM has also shifted its focus from mainframes to personal computers.海德转移了一下重心，就感到自己往前倾，开始失去平衡。Hyde shifted his weight and felt himself teeter forward, beginning to overbalance.孩子们是她生活的重心。Her childr...
我揭开一罐辣椒的盖子。I pried the top off a can of chilli.他扔给马隆一罐啤酒，自己也拿了一罐。He tossed Malone a can of beer, and took one himself.用贮藏的一罐炼乳为茶添加了甜味。The tea was sweetened with a hoarded tin of condensed milk....
Objective To observe the effect of acidum tranexamicum on melanogenesis of B 16 melanoma cells and mechanism.目的观察止血环酸抑制黑素瘤细胞的黑素合成作用并探讨其机理.The metastatic melanoma is seen here to be infiltrating into the myocardium.图示转移性黑...