DNA was extracted from fetuses at mid - gestation, about 10 days past conception.DNA从受孕大约10天后的 中期 妊娠胚胎中提取.Brucellosis is a disease that causes fetuses to abort in cattle.普鲁士菌病是一种可以导致牲畜胎儿夭折的疾病.B . Fraternal Twins Fetuses ...
Bev made her laugh, the way she was always clowning around.贝夫用她一贯滑稽耍宝的方式逗她发笑。She senses that behind the clowning there is a terrible sense of anguish.她感觉到在这种滑稽可笑行为的背后隐藏着极大的痛苦。Doesn't all of this seem like rather que...