Altricial是英语中的词语，翻译为“早产的”、“未成熟的”。这个词语通常用于描述出生时需要长时间依赖父母照顾和喂养的动物。这些动物出生时身体和行为上都不完全发育，需要依靠父母提供食物和保护。
以下是含有Altricial的9个例句：
1. The baby bird was altricial, and needed to be fed by its parents.
这只小鸟是早产的，需要依靠父母喂养。
2. Altricial mammals like rats and mice have very underdeveloped brains at birth.
像老鼠和小鼠这样的早产哺乳动物在出生时大脑非常不发达。
3. Altricial animals are often born blind and deaf.
早产动物常常在出生时双目失明、双耳失聪。
4. Altricial birds are born with only a small amount of down feathers, and are unable to fly for several weeks.
早产的鸟类仅有少量绒毛，需要几周的时间才能开始飞行。
5. Altricial squirrels are born blind and hairless, and are completely dependent on their mother for survival.
早产的松鼠在出生时双目失明、没有毛发，完全依靠母亲生存。
6. Altricial animals have a longer infancy period than precocial animals.
早产动物的幼年期比先天成熟的动物要长。
7. Altricial turtles are born with soft shells that take a few days to harden.
早产的龟类出生时背甲很软，需要几天时间硬化。
8. Altricial bats are born with their eyes sealed shut, and rely on their sense of smell to locate their mother.
早产的蝙蝠出生时眼睛紧闭，需要依靠嗅觉定位母亲。
9. Altricial rabbits are born without fur and with closed eyes, and are unable to move or regulate their body temperature.
早产的兔子出生时没有毛发，眼睛紧闭，无法移动或调节体温。
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