kangaroo [名词] 袋鼠 Ex: Tourists were thrilled to spot kangaroos grazing in the grasslands , their agile movements captivating observers . 游客们兴奋地发现袋鼠在草原上吃草,它们敏捷的动作吸引了观察者。
platypus [名词] a semiaquatic mammal native to eastern Australia, notable for its duck-like bill, webbed feet, and ability to lay eggs Ex: Platypuses are unusual mammals because they lay eggs instead of giving birth to live young .