点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
1. obeying the rules
2. trained mentally or physically by instruction or exercise
e.g. the beautiful coordination of his disciplined musclesa disciplined mind
多通过句子记忆单词，而不是单独死记硬背。
