单词	self-activity
释义	self-activity noun self-ac·​tiv·​i·​ty ˌself-ˌak-ˈti-və-tē  : independent and especially self-determined activity Word History First Known Use 1644, in the meaning defined above
随便看	sepiums sepn sepose sepoy sepoys seppuku seppukus seps sepses sepsid Sepsidae sepsis sept Sept-Îles septa septages septal septal neck septaler septalest septaller septallest Septanychus septarch septaria

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