hippopotamus/ˌhɪp.əˈpɑː.t̬ə.məs/名词河马We spotted a hippopotamus lazily sunbathing on the riverbank during our safari in Kenya.在肯尼亚的野生动物园游览中,我们发现一只慵懒地躺在河岸上晒太阳的河马。想跟读,去练习