A,a (pl. As, as or As, as)①the first letter of the English alphabet英语字母表的第一个字母;②from Ato Z; including everything; from beginning to end 全部;从头到尾:Dr. Hall knows the subject from A to Z.霍尔博士精通这门学科。
a, an indef. art. ①one 一;一个:I have ~ pen. 我有一支钢笔。②ezch; per; every 每一(个):twice ~ week 每周两次;The mailman comes once ~ day. 邮递员每天来一次。③for each; for eaery 每个(须付):Meat casts ten yuan ~ kilo. 肉每公斤10元。
abandon vt. ①leave someone or something离弃;抛弃:The driver ~ed his car in the snow.司机把汽车扔在雪地里。In his early years, he ~ed medicine for literature. 他早年弃医学文。~ones friends 背弃朋友②stop doing something停止做某事:They ~ed the attempt.他们停止尝试。
abandon, desert和give up 三者相比较,在表示“抛弃,离开”时adandon与desert同,如They decided to abandon the camp. 他们决定放弃该营地。The streets were deserted. 街上行人绝迹。在表示“放弃,停止做某事”时abandon与give up同,如We abandoned/gave up the attempt.我们放弃了尝试。