valid
词形变化:
同义词:
sound | cogent | legal | authorized | effective | lawful | true | good | established | well-grounded | adequate | proven | official | factual | efficient | right | effectual | convincing | confirmed | conclusive | reasonable | rational | justifiable | binding | usable | acceptable | legitimate | compelling | persuasive | telling |
反义词:
词义辨析:
同义:
a.合法的; 有效的
同义参见:
反义:
a.确凿的; 有效的