the pressure builds, the temperature falls. 水压越来越大,温度越来越低

83. Dawn returns, and the plankton sinks back into the depths.
    黎明到来,浮游生物又回到深海
84. If we are to follow, we must use a submarine.
    如果想要跟下去,必须乘潜水艇
85. As we descend into the darkness,
    随着我们在黑暗中不断下潜
86. the pressure builds, the temperature falls.
    水压越来越大,温度越来越低
87. Below five hundred meters, new, mysterious animals appear.
    在500米深处,新的神秘动物出现了
88. Their bizarre shapes help them to remain suspended in the dark space.
    它们奇异的外形帮助它们在漆黑的空间里悬浮
89. Some resemble creatures familiar from shallower waters
    有一些貌似浅海生物

来自《行星地球 第一季 第十一集 Planet Earth S01E11 海洋深处》第 86 行