rudimentary
🇺🇸
/ˌruːdɪˈmentri/
🇬🇧
/ˌruːdɪˈmentri/
basic and simple, not advanced or complex
She had only rudimentary cooking skills.
她只有一些基本的烹飪技巧。
not fully developed or complete
The creature had rudimentary wings, incapable of flight.
這個生物有一對原始的翅膀,不能飛行。