据说在美国每一个货柜的最高载重量为：19.5吨，是的确有这样的规定吗？
It is said that the most loadable qtty of each container is 19.5 (metric) tons in the USA as per relative provisions, pls confirm whether it's true.
据说，国外不少地方还实行垃圾按量收费政策，家里产生的不可回收的垃圾都要按照重量和数量支付垃圾处理费的。这样的环保政策，您会支持吗？
The system usually operates with free collection of recycled waste, with the principle therefore being that 'the more you recycle, the less you pay'.
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