In this task, given a sentence in the English language, your task is to convert it into the Chinese language.

[EX Q]: "The goal must be to stop plastic bags getting into the litter stream and spoiling Australia’s environment."
[EX A]: “目标必须是阻止塑料袋进入垃圾流并破坏澳大利亚的环境。”

[EX Q]: Rijsberman said water scarcity in Africa was caused by a lack of infrastructure to get the water to the people who needed it.
[EX A]: 里兹伯曼说，非洲的水资源短缺是由于缺乏基础设施来向需要水的人们提供水。

[EX Q]: The Trident defence system was developed as Britain’s response to the Cold War which ended with the collapse of the USSR in December 1991.
[EX A]:
三叉戟防御系统是随着英国对冷战的回应而发展起来的，随着1991年12月苏联解体而结束。

