在英语中，当人们感到难过时，通常会使用表示悲伤、沮丧或悲痛的词汇来表达。这些词汇可能包括 "sad," "depressed," "down," "blue," "miserable," "unhappy," "grief-stricken" 等。

例如：

I feel sad because my pet died. (我感到难过，因为我的宠物死了。)
She's been depressed since her husband left. (自从她的丈夫离开后，她一直感到沮丧。)
He's been feepng down since losing his job. (他失业后一直感到沮丧。)
I'm feepng blue because I miss my family. (我感到悲伤，因为我想念我的家人。)
She was miserable after breaking up with her boyfriend. (她和男友分手后感到悲痛。)
He was unhappy with his job and decided to quit. (他对自己的工作不满意，决定辞职。)
She was grief-stricken after the death of her mother. (她的母亲去世后感到悲痛。)

希望这些信息对您有帮助！