1、读:[ˈɒstrɪtʃ]、美[ˈɑːstrɪtʃ]
2、鸵鸟:a very large African bird with a long neck and long legs, that cannot fly but can run very fast
3、(informal) 逃避现实的人;不愿正视现实者:a person who prefers to ignore problems rather than try and deal with them