a, an art. ①一(个):a thousand pounds 一千英镑 Hell be back in an hour. 他一小时后回来。②(同类事物中的)任何一个:A square has four sides. 正方形有四个边。③每一(个):Take the medicine three times a day. 每天吃三次药。
ability n. ①能力:No one will doubt yur ability to do the work. 谁也不会怀疑你有能力做这项工作。②才能:He is a man of great ability. 他是一个很有才能的人。
able adj. 有能力的;能干的;Shes an able teacher. 她是一个能力很强的教师。be able to do sth. 能做……事:Will you be able to come to our party? 你能来参加我们的聚会吗?I Havent been able to read the report yet. 我还未能读那份报告。
about Ⅰ. prep. ①关于:Whats the book about? 这本书是关于什么的?②在……附近:I saw it about here. 我在这附近看到过它。③到处:They walked about the streets. 他们在街头四处走着。Ⅱ. adv. ①大约:I live about ten miles away. 我住的地方离这儿大约有 10 英里。②到处:The children ran about. 孩子们四处奔跑。③在附近:There was nobody about. 周围没有人。④几乎,将近:Im about ready. 我快要准备好了。Ⅲ. adj. 正要:We were about to start when it rained. 我们正要动身,却下起雨来了。