adj.未被觉察到的,未被注意到的;不受人注意的,被忽视的;没人理睬的;
例句:
Elsa stood unnoticed at the edge of the crowd.
埃尔莎悄悄地站在人群边上。
I can't let this act of kindness go unnoticed.
我不能让这种好人好事湮没无闻.
His kindness did not go unnoticed by his staff.
他的厚道员工了然于心。