rules of thumb

例句：

1. 1. He always follows the rules of thumb when making decisions.
   他在做决定时总是遵循经验法则。
2. 2.The engineer used his experience to make a quick decision.
   工程师凭借经验做出了快速的决定。
3. 3. It's important to follow the rules of thumb when cooking, as they can save you time and effort.
   在烹饪时遵循经验法则很重要，因为它们可以节省你的时间与努力。