serious

• All faces around the boardroom were deadly serious .
  屋里所有人的表情都十分严肃。
• Do you ever read serious works ?
  你看不看理论性的著作？
• There 's nothing really serious .
  没有什么不得了的事。
• Most of the people were very serious and respectful .
  大多数人都很严肃，规规矩矩。
• The unlawful possession of drugs is a serious crime .
  非法拥有毒品是严重犯罪行为。
• During his serious illness he lost over ten jin .
  他害了一场大病，体重掉了十多斤。
• His error is of a serious nature .
  他的错误情节严重。
• Wasp stings are serious , as i know to my cost .
  让黄蜂蜇了可不好受，我吃过这苦头。
• He was always a farcer and was never a serious man .
  他本来就油腔滑调，不是正经人。
• Everyone gratefully steered clear of serious talk .
  每一个人都不谈正经事，皆大欢喜。