#應付機械磨損
#改變材料特性
#Manage mechanical wear
#Modify material characteristics
保護舌頭免受刺傷 (Tongue protected from thorns)
長頸鹿和其他有蹄類動物取食有刺植物時，其皮革狀的舌頭和嘴能起保護作用
(The tongues and mouths of giraffes and other ungulates are protected when eating thorny plants because they are leathery)
