ad n. 广告:They put an ad in the local newspaper. 他们在当地报纸上登载了一则广告。add v. 增加,添加: He added the wood to the fire.他给火添加了木材。...[继续阅读]

    aid v. & n. 援助,帮助: He often came to my aid. 他经常来帮助我。aide n. 副官,随从,助手: the presidents former ～ 总统的前任助理...[继续阅读]

    aerie n. 猛禽巢(尤指鹰巢):a hawks ～ 鹰巢airy a. 空气的,轻盈的: an airy silk gauze轻飘飘的丝质薄纱...[继续阅读]

    aero a. 飞机的,航空的arrow n. 箭,箭状物: Follow the ～ on the map. 跟着地图上的箭头走。...[继续阅读]

    ail v. 使受病痛,生病:When did the boy began to ～? 孩子什么时候生病的?ale n. 啤酒:a pint of brown ～ 一品脱生啤; an ～ wife啤酒店的老板娘...[继续阅读]

    air n. 空气:The fresh ～ made him feel relaxed.新鲜的空气使他轻松起来。ere conj. & prep. 在…之前:Go ahead ～ it is too late.趁着还不太晚继续前进。heir n. 继承人:The kings eldest son is the ～ to the throne.国王的长子为王位继承人。...[继续阅读]

    aisle n. 通道,走廊:The ～s of the theatre were crowded with the people.剧场的走廊上挤满了人。isle n. 岛,小岛: the British Isles 不列颠群岛...[继续阅读]

    all pron. 一切,全部:Say ～ you know and say it without reserve.知无不言,言无不尽。　　a. 所有的:All the idioms are not illustrated.所有的成语都没有用例子说明。　　ad. 完全:I am ～ for your suggestion.我完全赞同你的建议。　　n. 全部:He gave his ～ ...[继续阅读]

    allowed v. (allow的过去式和过去分词) 允许,准许:The newspaper is not ～ to take away.报纸不可拿走。aloud ad. 大声地:read ～朗读...[继续阅读]

    altar n. 祭坛,圣坛:lead sb. to the ～ 与某人结婚alter v. 改变,改动:The ship ～ed her course.船改变了航向。...[继续阅读]