贫困、文盲与高出生率密切相关。Poverty and illiteracy go together with high birth rates.由于出生率下降，产科服务会随之削减。Maternity services were to be reduced in consequence of falling birth rates.有几个因素已被援引来说明出生率降低的原因。Several factors have been adduced...
They started to piece the story together from hearsay.他们开始根据传闻把事情的经过一点点拼湊起来.Much of what was reported to them was hearsay...向他们汇报的消息中很多都是道听途说。Rumour, myth and hearsay obscure the truth after months of bloodshed.杀戮持续了数月后，...
该酶蛋白含有17种氨基酸, 其中甘氨酸(Gly)和丙氨酸(Ala)为主要氨基酸.The protease includes 17 amino acids , among which, Gly and Ala are dominant amino acids.通过重组SOD技术使失去铜锌离子失活的酶蛋白恢复酶的催化活性.Furthermore, the inactivated enzyme losing metal ion is reac...