1.●abandon v. 放弃，遗弃，抛弃 abandon the baby/ child/ friend
abandon the plan/ idea/ effort/ hope
abandon oneself to 陷入，沉湎于 He abandoned himself to despair.
2. ◎ability n. 能力; 才能 the ability to walk 行走的能力
to the best of one’s ability 竭尽全力 He completed the job to the best of his ability.
3.●abnormal adj.不正常的，畸形的，反常的 They thought his behavior was abnormal.
4. ◎aboard prep. adv.在船(飞机，火车)上，上船(飞机，轮船)
all the people aboard 机上的人
5. about prep关于，ad 大约，到处
a) be about to do sth…(when) I was about to go out when it began to rain.
b) look about/around/round c) How/What about…询问情况或建议
6 . above prep 在…上面 above all 首先;尤其
7. abroad ad.到(在)国外 a) go /study /live abroad b) at home and abroad在国内外
8. ●absence n. 不在，缺席
absence from work/ school The decision was made in my absence.
in the absence of 在缺少…条件下 The case was dismissed in the absence of proof.