alien
/ˈeɪliǝn/
n.外星人;外国人;外侨;adj.外国的;陌生的;相异的
Many science fiction films show an alien landing on Earth in a mysterious spaceship.
native
/ˈneɪtɪv/
adj.本土的;当地的;天生的;n.土著;本地人;本国人
The guide explained how the island's native plants have adapted to the dry climate.