turn over a new leaf 〈喻〉掀开新的一页,重新开始;改过自新;从头做起 I have been very lazy but I am going to turn over a new leaf and work hard. 我一向很懒,但我将改过自新,努力工作。 The conservative editorial board was turning over a new more open-minded leaf. 那立场保守的编委会正变得较为开明。 [OE; 与 OHG loub, L liber bast, book 有关]