bread-and-butter [ˈbrɛdnˈbʌtɚ]

例句:

• The mobile phone business was actually his bread and butter.
  移动电话业务实际上是他的主业。
  
• The opposition gained support by concentrating on bread-and-butter matters.
  反对党关注与大多数人切身利益相关的问题，从而赢得了人们的支持。
  
• a piece of bread and butter
  一块黄油面包
  
• These topics will remain the bread-and-butter of introductory courses.
  来自NEWYORKER
• Remove the bread and rub with the garlic clove.
  来自BBC
• Place the shallots and butter in a small saucepan.
  来自BBC