Infant and toddler skin also has less of the brown pigment melanin , which helps protect the skin from ultraviolet light .
婴儿和幼童皮肤中只含有较少的布朗黑色素,而这些黑色素可使皮肤远离紫外线伤害。
After the disappearance in portugal in 2007 of madeleine mccann , a british toddler , some european politicians have called for a pan-european registry .
For instance , if you 're trying to explain birth to a toddler , you don 't need to explain the intricacies of the birth canal and the umbilical cord .
举个例子,如果你要对一个幼童解释出生,你不必解释复杂的产道和脐带。
The video shows a toddler playing in a street .
录像显示一位幼童在大街上玩耍。
Mistakes make walking possible for the smallest toddler , make speech possible , make works of genius possible .