| 词性词形谱(v)sustain(n)sustainability(a)sustainable ≠ unsustainable(n)sustainability sustain 选择性必修1000 全国卷频次：2 教材出处：译林版选必修B3U1 /səˈsteɪn/ vt. sustains 0 sustaining 0 sustained 0 支撑，撑住，维持，持续 高考真题原句提选：Group exercise is one of the most effective ways to improve physical fitness and sustain a healthy lifestyle.集体锻炼是增强体质和保持健康生活方式的最有效方法之一。 |