vi.
哀伤，悲哀；痛心；惋惜(常与for， over连用)：
The manager announced his resignation and everybody mourned.
经理宣布了他的辞职，大家都感到惋惜。
凭吊，哀悼(常与for， over连用)：
He sat alone in his room after the battle, mourning over the loss of his best friend.
这场战役打完后，他独自坐在屋里，哀悼好友的牺牲。
戴孝，穿丧服，服丧