Thus, some animals have been seen stimulating their own sex organs when alone, or mounting partners of their own sex, or trying to copulate with members of other species (including man).是什么意思_Thus, some animals have been seen stimulating their own sex organs when alone, or mounting partners of their own sex, or trying to copulate with members of other species (including man).在線翻譯_英語_讀音_用法_例句