马刀在刀鞘里咔嗒作响，骑手催马向前。Sabres rasped from scabbards and the horsemen spurred forward.他的脸上留有马刀砍下的伤痕.His face was seamed with sabre cuts.他用短剑挡开了马刀.He parried the sword with his dagger....
A suppressed immune system puts a transplant recipient at risk of other infections.接受器官移植的病人免疫系统受到抑制后很可能会感染其他疾病。Both electrons don't count for the donor and neither for the recipient.那两个电子既不算作给予体的,也不是接受体的.The donor&...