41 enroll vt.注册、使…入会
enrollment
42 evacuate vt. 撤走、疏散
43 evaluate vt.评价、估计
evaluation n.
44 evaluate vt.评价、估计
45 excessive a.过度的
46 frustrate vt.使沮丧, 使灰心
frustration n. 挫折; frustrating a. 令人沮丧的
47 genetic a.遗传的
48 guarantee vt. 保证
49 identify vt.鉴别、验明
identify theft 辨别偷窃
50 immigrate vt. 移民
immigrant n.移民immigration