颊窝毒蛇的毒牙是长的空心管子.The fangs of pit vipers are long, hollow tubes.只有四分之一的蛇具有毒液和毒牙.Venom and fangs are found in only a quarter of all known snakes.在蛇的进化史上,毒牙的出现是新的进步.A more recent advance in the evolutionary story of snakes i...
He joined the consular service, chiefly because this was one of the few job vacancies.他到领事馆工作,主要因为那是仅有的几个空缺职位之一。If you need to return to the UK quickly, British Consular officials may be able to arrange it.如果你需要尽快返回英国,英国...
Diethylstilbestrol ( DES ), is a kind of nonsteroid synthesized estrogen.己烯雌酚 ( diethylstilbestrol,DES ), 是一种非甾体类雌激素.Objective To induce hypospadias in rats by diethylstilbestrol ( DES ).目的 尝试用己烯雌酚 ( DES ) 建立尿道下裂大鼠模型.Obj...
Onscreen, she lacks the vitality or charisma to pass this performance off.电影中的她缺乏演绎这出戏的活力和魅力。He was elected to power on the strength of his charisma.他凭借其个人魅力而当选掌权。The President has great personal charisma.总统具有超凡的个人魅力。...