I'm not disciplined enough to exercise every day.我自我要求不够严格，做不到每天坚持锻炼身体。

We need a more disciplined approach if the program is to be successfully implemented.要想使这项计划顺利落实，我们需要一套更为严格的办法。

an orderly and disciplined mind头脑清醒、训练有素的人