To express deep sorrow and indignation through song, poetry, or writing, as a substitute for actual weeping.
面对亲人的离去，他没有嚎啕大哭，而是选择了长歌当哭，将悲痛化为一篇篇感人的诗歌。
Facing the departure of a loved one, he did not wail loudly; instead, he chose to express his deep sorrow through poetry, transforming his grief into moving verses.
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