If our environment cools, then messages from the skin alert the body's thermostat.如果外在环境变冷，体表会将这一信息传递给身体的体温调节中枢。Man-made pollution and toxicity are causing extreme environmental changes.人为的污染和毒害正在引发极端的环境变化。Here, despit of every stripe continued to hold sway, unaltered by time or circumstance.各种各样的独裁者持续统治着这里，丝毫不被时间或环境变化所影响。