4月30日每日单词
1. frustrate[frʌ'streɪt; 'frʌs-] v adj挫败
2. I feel frustrated 我感到沮丧
3. setback ['setbæk] n挫折
4. drawback ['drɔːbæk] 缺点
5. throw light on 使……显得清楚;阐明……;照亮
6. His book threw light on the theory
7. significant[sɪg'nɪfɪk(ə)nt] 有重要意义的,重要的
8. significance [sɪg'nɪfɪk(ə)ns] n. 意义;重要性;意思
9. insignificant [ɪnsɪg'nɪfɪk(ə)nt] adj无关的,不重要的