?基音

... frndamental 基谐波 frndamental 基音 froe 楔刀 ...

?重要的

...重要的 basilic; big; c.notable; central; concernful; consequential; considerable; critical; crucial; frndamental; frontpage; fundamental; imperative; impt important; main; major; material; moving; of consequence; serious; significant...

?基本原理

...基本原理 basal principle; basic fundamental; basic principle; basis; cardinal princilpe; cardinal principle; elementary principle; elements; first principles; frndamental; fundamental principles; grammar; groundwork; keystone; maxim; philosophy; postulate; principia; principium; radical pri...