adj.(衣服等)穿旧的;(衣料等)磨得很薄的;陈旧的;老一套的;
例句:
He wore his coat threadbare.
他把外套都穿破了.
China's record as a citizen of the world is threadbare.
中国作为世界一员的历史极度乏善可陈.
a threadbare carpet
磨薄了的地毯