The city is asking all of its residents to sort their waste into four groups: wet, recyclable, harmful, and dry.
该市要求所有居民将垃圾分为四类:湿垃圾、可回收垃圾、有害垃圾和干垃圾。
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One theory behind savanna formation is that wet forest species are unable to withstand the dry season, and thus savanna, rather than rain forest, is favored on the site.