狂犬病病毒的确认挽救了许多人的性命.The identification of rabies virus has saved many lives.狗 、 猫和蝙蝠都可能携带狂犬病病毒.Dogs, cats and bats can all carry rabies.狂犬病被称为人类已知的最可怕的疾病之一。Rabies has been described as one of the most terrifying diseases k...
a baby's development in the womb胎儿在子宫内的发育The baby's head was starting to emerge from the womb.婴儿的头开始从母亲的子宮中露出来.A scan determines the position of the baby in the womb.扫描可以确定胎儿在子宮中的位置....