电脑用久了，总会养成不良习惯，也许短时间内这些 习惯还不会影响工作，但日久天长，难保电脑不会积劳成 疾。-Computer using a long time, there will always develop bad habits, perhaps a short period of time these habits also will not affect the work, but long long time, there is no guarantee the comput