flasks

例句:

• This is one of the first ever vacuum flasks.
  来自BBC
• Four or five men were drinking tea from flasks.
  四五个男人在喝保温瓶里的茶水。
  
• The juggler juggled three flasks.
  这个玩杂耍的人可同时抛接三个瓶子.
  
• The meat in all of the open flasks putrefied.
  所有开口瓶中的肉都腐烂了。
  
• The near-vacuum between the flasks also prevented heat transfer by convection.
  来自BBC
• The flasks are used most often for transporting and containing liquid nitrogen.
  来自BBC