mnemonic instruction codes

例句：

1. 1.The mnemonic system is a useful tool for memorizing information.
   这个记忆法系统是记忆信息的有用工具。
2. 2.She used the mnemonic to help her remember the steps to cook a meal.
   她用这个方法帮助她记住做一顿饭的步骤。
3. 3. The teacher used mnemonic words to explain complex concepts in a clear and concise manner.
   老师使用助记词以清晰简洁的方式解释复杂的概念。