adj.尖锐的，有效的，鲜明的

His wit was so trenchant that it could cut through even the thickest of social barriers.
他的机智尖锐得足以穿透最坚固的社会壁垒。
The author's critique of society was so trenchant, it left no room for mercy.
作者对社会的批评犀利无比，毫不留情。
She delivered a trenchant speech on climate change, leaving the audience deeply impressed.
她就气候变化发表了一篇深刻而尖锐的演讲，给观众留下了深刻印象。
Trenchant observations are the hallmark of his writing style.
他作品的特点是深刻的观察力。
His trenchant comments about politics never failed to spark controversy.
他对政治的尖锐评论总是引发争论。
The journalist's reporting was marked by a trenchant sense of justice.
这位记者的报道以其敏锐的正义感为特征。
Her criticism was trenchant, but she did it with kindness and understanding.
她的批评虽然尖锐，但她始终带着理解和善良去表达。
The editor's trenchant editorial on the newspaper's stance on gun control was widely read.
编辑关于报纸枪支控制立场的犀利社论被广泛阅读。
Trenchant insights into human nature can often be found in her novels.
在她的小说中，常常能找到对人性深刻的洞察。
The economist's analysis was a trenchant reminder that economic policies need to address inequality.
这位经济学家的分析尖锐地指出，经济政策必须关注不平等问题。