n.动摇；衰弱；崩溃
tabefaction───n.消瘦，衰弱
labefactation───衰弱
arefaction───除湿；干燥
calefaction───n.加热；热污染（等于thermalpollution）；温暖（的状态）
madefaction───n.润湿
malefaction───n.罪行；罪恶；犯罪行为
rarefaction───n.[声]稀疏；（气体）稀薄
rubefaction───n.皮肤发红；使…发红；红化作用
libel action───[法]诽谤诉讼
With the decreasing labefaction of our environment, the useable fresh water is facing pollution and becoming exhausted in the large-scale, and shortage is a threat to the whole world as well.───随着人类生态环境的日益恶化，世界可用淡水资源正在逐渐枯竭并普遍受到人为污染，全世界正面临着可用淡水资源短缺的威胁。
on the other hand, environmental labefaction restricts economic increase.───另一方面，环境恶化反过来也制约了经济的增长。
All designs is trying its best to show the labefaction hundred years ago.
With the decreasing labefaction of our environment, the useable fresh water is facing pollution and becoming exhausted in the large-scale, and shortage is a threat to the whole world as well.