adj.未曾提及的，突如其来的，突然发生的

The unheralded efforts of the volunteers were crucial to the success of the project.
这些志愿者默默无闻的努力对项目的成功至关重要。
Despite his unheralded arrival, the new manager quickly made a significant impact on the team.
尽管他悄无声息地到来，但这位新经理很快就对团队产生了显著的影响。
The work of local farmers remains largely unheralded in the global food industry.
当地农民的工作在全球食品行业中仍然鲜为人知。
Her unheralded talent was finally recognized when she won the national poetry competition.
她那未被瞩目的才华终于在赢得全国诗歌比赛时得到了认可。
In the aftermath of the disaster, many unheralded heroes emerged from the community.
灾难过后，社区中涌现出了许多未受关注的英雄人物。
His unheralded contribution to medical research has saved countless lives over the years.
他在医学研究上默默无闻的贡献这些年来挽救了无数生命。
The small startup company's innovative product gained an unheralded market share within just a few months.
那家小创业公司的创新产品在短短几个月内就获得了未曾引起广泛关注的市场份额。
Amongst all the celebrated athletes, there are always several unheralded ones who deserve equal recognition.
在所有备受赞誉的运动员之中，总有一些默默付出同样努力却未受足够关注的人值得同样的认可。
He was a brilliant musician whose unheralded compositions would only be discovered after his death.
他是一位杰出的音乐家，其生前那些未被广泛知晓的作品直到他去世后才得以被人发现。
In the annals of history, there are numerous unheralded figures whose actions shaped our world.
在历史的长河中，有许多未被充分颂扬的人物，他们的行动塑造了我们的世界。