1 instructions [pl] detailed information on how you should use sth, do sth, etc 说明（书）；用法；做法: Read the instructions on the back of the packet carefully. 仔细读读包装背后的说明。You should always follow the instructions. 你一定要按说明书办事。

2 [C] an instruction (to do sth) an order that tells you what to do or how to do sth 命令；指示: The guard was under strict instructionsnot to let anyone in or out. 守恒接到指示，严禁任何人出入。

3 [U] instruction (in sth) the act of teaching sth to sb 教导；指导: The staff need instruction in the use of computers. 员工们需要接受使用计算机指导。