英汉词典

1. 指示;命令
    An instruction is something that someone tells you to do.

    e.g. Two lawyers were told not to leave the building but no reason for this instruction was given.
           两名律师被告知不得离开大楼,但对这一命令并没有提供任何理由。

2. 教学;讲授
    If someone gives you instruction in a subject or skill, they teach it to you.

    e.g. Each candidate is given instruction in safety...
           向每位申请人都讲授了安全知识。
    e.g. All schoolchildren must now receive some religious instruction.
           现在所有的在校儿童都必须接受一定的宗教教育。

3. 用法说明;操作指南
    Instructions are clear and detailed information on how to do something.

instruction的近义词

    e.g. Always read the instructions before you start taking the medicine.
           在服药之前一定要先阅读说明书。