Six weeks after conception, your baby is the size of your little fingernail.
受孕六周后你的孩子有你小手指甲那么大。
《柯林斯英汉双解大词典》
2
Baby boys do not react at all to the difference and the size of the cube.
男婴对立方体的大小和差异完全没有反应。
3
Baby boys do not seem to notice the difference in the size of the ball, but girls immediately become excited and begin to make noises that sound like language.