1.a message describing how something is to be done;
he gave directions faster than she could follow them
2.the activities of educating or instructing or teaching; activities that impart knowledge or skill;
he received no formal education
3.the profession of a teacher;
he prepared for teaching while still in college
4.(computer science) a line of code written as part of a computer program
字典解释 动词:instruct 讲授, 教导[育]; 教诲 [pl. ]指令[示]; 命令; 通知, 程序, 说明书, 细则, 规程 The doctor's instructions must be fulfilled exactly. 医生的指示必须严格遵行。 The boss gave me so many instructions at one time that I got muddled up. "老板一下子给了我那么多指示,把我弄得糊里糊涂。" (常用复数instructions )说明 Read the instructions on the pocket. 看一下袋子上的说明