assume 假定，假设 Farmers will have a bumper harvest, assuming (that) the weather si favarable.

assure 深信不疑地对......说，向......保证

assurance 保证，把握，信心 He gave me his assurance that he would help.

astonish 使惊讶 I was astonished at his sudden appearance.

attach 系，贴，连接 attach a label to a suitcase

attain 达到，获得 attain one’s goal

attend 出席，参加(会议等) attend a wedding

attendance 出席，参加，出席人数，出席率 Our class has perfect attendance today.

attentive 注意的，专心的 an attentive audience

attribute 把归因于，把......(过错的责任等)归于(to) He attributed his success to hard work.

auxiliary 辅助的 an auxiliary rocket

avail 有利于，有助于 Will force alone avail us?

average 平均数，平均 The paper receives an average of nearly 100 articles a day.

avert 挡开，防止，避免 Many traffic accidents can be averted by courtesy.

awake 醒，觉醒 awake from sleep

award 授予(奖品等) The university awarded him an honorary degree.

ban (以官方明令)禁止，取缔 He was banned from entering the city.

bang (突发的) sudden loud bang

bar 条，块，杆，棒 a bar of gold

bare 赤裸的，光秃的，空无内容的 walk in bare feet

beforehand 预先，事先 If you wanted soup for lunch you should have told me beforehand.

behave 举止端正，听话　Do behave.

bewilder 使迷惑，使糊涂 I’m bewildered as to which one to buy.

bias 偏见，偏心 have a bias against sb.(或sth.)

blame 责备，责怪 Public opinion blames Mrs Smith for leading the girl astray.