a lugubrious look的用法和样例：
- "Truly they are," murmured the count in a lugubrious tone.
- "I am drinking," replied the tippler, with a lugubrious air.
- I look at this problem from a different viewpoint.
- But on emerging from so melancholy a conflict, what a lugubrious peace, alas!Nevertheless, that night Jean Valjean felt that he was passing through his final combat.