坚硬的龟壳用英文怎么说
时间：
坚硬的龟壳用英语称为 "hard turtle shell". 来源于龟的外壳是坚硬的，可以保护它免受外界伤害。
例句：
The hard turtle shell protected the turtle from the predator's attack.
(坚硬的龟壳保护了龟免受捕食者的攻击。)
The hard turtle shell is made of a material called keratin, which is also found in human hair and nails.
(坚硬的龟壳是由一种叫做角蛋白的材料制成的，在人类的头发和指甲中也可以发现。)
The hard turtle shell is a unique adaptation that allows turtles to survive in their environment.
(坚硬的龟壳是一种独特的适应性，使得龟能在它们的环境中生存。)
例句：
The hard turtle shell protected the turtle from the predator's attack.
(坚硬的龟壳保护了龟免受捕食者的攻击。)
The hard turtle shell is made of a material called keratin, which is also found in human hair and nails.
(坚硬的龟壳是由一种叫做角蛋白的材料制成的，在人类的头发和指甲中也可以发现。)
The hard turtle shell is a unique adaptation that allows turtles to survive in their environment.
(坚硬的龟壳是一种独特的适应性，使得龟能在它们的环境中生存。)