事情 发表于 2025-3-30 09:16:31
Lernfreiheit und Studienordnung, The answers are complex. One important reason is that the energy that is used to support ourselves, our families, or our economic activity generally is used at some other location and by other people, or by quiet automatic machines whose fuel tends to be relatively cheap. After all, coal, oil, andeffrontery 发表于 2025-3-30 13:48:09
http://reply.papertrans.cn/32/3106/310518/310518_52.pngReverie 发表于 2025-3-30 20:32:57
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