noun 下载 🔗分享 小袋鼠,沙袋鼠 Any of several species of marsupial; usually smaller and stockier than kangaroos Examples : "While kangaroos graze openly in the field, a shy wallaby peeked out from under a bush. " 袋鼠在田野里自在地吃草,而一只害羞的沙袋鼠则从灌木丛下探出头来。 animal biology nature 与AI对话词汇游戏阅读练习