爱词霸英语   汉语   手机版   软件版下载 | English
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1.Open wound , skin disease , eye illness are unsuitable to swim.
有开放性伤口、皮肤病、眼疾不宜游泳。收藏指正
2.Eye position in freshwater dolphins, which often swim on their side or upside down while feeding, suggests that what vision they have is stereoscopic forward and upward.
淡水海豚眼睛的位置经常在游泳或进食时在一边或倒着，表明他们有前面或下面的立体视觉。收藏指正
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