undertones

例句:

• His mother leaned forward and spoke to him in urgent undertones.
  他母亲身子前倾，小声而急切地跟他说话。
  来自柯林斯例句
• Yet The Undertones were always likeable and rarely boring.
  来自BBC
• Well-dressed clients were talking in polite undertones as they ate.
  衣着光鲜的顾客们边吃边斯文地低声聊着天。
  
• "Ladino Song" combines Ibero-Sephardic undertones with nuevo-flamenco.
  来自BBC
• The couple at the next table were speaking in undertones.
  邻桌的夫妇在低声交谈.
  
• Unfortunately, it has much more serious undertones of enforced conformity.
  来自BBC