The particular design ofmuscles and bones in the neck and limbs of the turtle allow that it can draw in its exposed parts such that an attacker can find nothing but hard shell to bite.
海龟颈部和四肢的肌肉及骨骼的特殊设计使它能把暴露在外的部分缩回去，这样攻击者只能去咬坚硬的外壳。
2
The chances are you will feel a little lighter, have more relaxed face, neck and shoulder muscles, let go of some inner stress and tension and disconnected from any worrying thoughts.
When she felt she was being unjustly treated, slandered, or attacked and she was struggling to respond, she rolled her shoulders forward and her neck swelled, showing the play ofmuscles.