单词	alumen ustum
释义	alumen ustum noun alumen us·​tum -ˈəstəm, -ˈu̇s- plural alumina usta -mənəˈəstə, -ˈu̇s- : burnt alum Word History Etymology New Latin First Known Use 1753, in the meaning defined above
随便看	ti-in ti-lib ti-ma ti-mil ti-mis ti-mo ti-na ti-or ti-por ti-pro ti-prof ti-pros ti-rack ti-re ti-rev ti-seg ti-sen ti-shop ti-spec ti-stokes line ti-tech ti-the ti-to ti-tra ti-un

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