连续黑暗时的发育历期比光照下的长，发育速率慢；
The growth period gets slowly and the growth speed get faster if in continues dark and high temperature.
人们发现，连续一年被关在黑暗的环境中的鲎仍然可以保持稳定的大脑活动节奏，这种稳定的节奏也使得它们的眼睛适应每日或明或暗的光线。
Horseshoe crabs kept in the dark continuously for a year were found to maintain a persistent rhythm of brain activity that similarly adapts their eyes on a daily schedule for bright or for weak light.
本周，《阿凡达》成为继去年夏天的《黑暗骑士》以后，第一部连续四周占据全美电影周票房排行榜榜首位置的电影。
This week the film became the first since The Dark Knight two summers ago to hold on to the top spot in the US film charts for four consecutive weekends.
应用推荐