42. amount to (=to be equal to) 总计, 等于.
43. answer for (undertake responsibility for, be liable for, take charge for) 对…负责.
44. answer to (=conform to) 适合,符合.
45. be anxious about 为…焦急不安; 或anxious for
46. apologize to sb. for sth. 为…向…道歉
47. appeal to sb. for sth. 为某事向某人呼吁. appeal to sb. 对某人有吸引力
48. apply to sb. for sth. 为…向…申请 ; apply for申请; apply to 适用.
49. apply to 与…有关;适用
50. approve of (=consent to, be in favor of, favor, agree to, consider good, right) 赞成, approve vt. 批准