The fish rests on the ocean floor as he prepares to make a dart for any passing prey he has lured towards him using the protrusion above his mouth.
这条鱼在海底静静地等待被他嘴巴上面的突起物应有过来的猎物，随时准备对游过的美餐发动突袭。
Was the experimenter accidentally signalling the infants after the initial tongue protrusion or mouth purse through further small facial movements?
实验者在最初吐舌头或者努嘴之后，有没有一些其他的面部表情给了孩子提示？
Was the experimenter accidentally signalling the infants after the initial tongue protrusion or mouth purse through further small facial movements?
实验者在最初吐舌头或者努嘴之后，有没有一些其他的面部表情给了孩子提示？
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