这些细胞看起来几乎像正常的脑细胞，它们生长缓慢。
The cells look nearly like normal brain cells, and they grow slowly.
成年圣诞岛红蟹或许一年只蜕一次壳，因为它们生长缓慢。
Mature Christmas Island red crabs probably moult only once a year, as their growth rate slows.
在产生第三代之前，大多数喂食转基因大豆的仓鼠失去生育能力，它们生长缓慢，幼仔死亡率高。
By the third generation, most GM soy-fed hamsters lost the ability to have babies. They also suffered slower growth, and a high mortality rate among the pups.
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