这些小男孩乘长橇高兴地下山了.The boys bobbed down the hill screaming with pleasure.长橇后来装有轮子,让滑橇的人不用依赖冰面.Wheels were eventually put on the sleds so riders didn't have to depend on ice....
Snow Puppies is a ski school for 3 to 6-year-olds.“雪狗之家”是一所针对3至6岁儿童的滑雪学校。He bent to a squat and gathered the puppies on his lap.他弯腰蹲下，把小狗们都抱到自己腿上。a litter of puppies一窝小狗...
ObjectiveTo investigate the clinical characteristics and therapeutic results of malignant tumors of ceruminous external auditory canal.目的探讨外耳道耵聍腺源性恶性肿瘤的临床特征和治疗效果....