Daily Chinese Idiom Guessing Game
Something that offers much food for thought and invites deep reflection; thought-provoking.
耐禁得起；寻味探索体味。意味深长，值得人仔细体会琢磨。
清·无名氏《杜诗言志》卷三其所作如《少府画障歌》、《崔少府高齐观三川水涨》诸诗，句句字字追琢入妙，耐人寻味。”
The ending of the movie is so ambiguous that it is truly 耐人寻味.