| 1. | Kids with down syndrome tend to share certain physical features such as a flat facial profile , an upward slant to the eyes , small ears , a single crease across the center of the palms , and an enlarged tongue
有唐氏症的孩子通常都有些相同的外在特征，比如平直的面部轮廓、眼睛向上歪斜、小耳朵、断掌，还有个大号的舌头。 |
