average n.平均, 平均水平, 平均数 adj.通常的, 平均的 (above the average/在一般水平以上, 中上; below the average/在一般水平以下; on the [an] average/平均);

avoid v. 避免; 回避; (avoid –escape避免)

aware adj. [用作表语]知道的; 意识到的(be aware of/知道, 意识到; be  aware  that .../发觉, 注意到);  （conscious – aware意识到的）

away adv. 离开, 远离 (Go away!/走开!; keep away from../与..保持距离; run away/逃掉; take sth. away/拿走; right away/立刻, 马上; far away/在远处) ;

awful adj. 可怕的, 极坏的 (awful –terrible可怕的)

back n. 背，背部, 后面adv. 向后, 在后面v. 向后退,支持，援助(support –back支持)adj. 早已过去的, 后面的(back and forth/往返；来回; go back to .../回到原来状况，回原处; go back on/食言; a back issue magazine /过期杂志; back seat /后座; back up/支持，援助）;

background n. 背景, （个人出身、受教育）经历 (background music /背景音乐); backward(s) adj. 向后的, 相反的adv. 向后地;

bad (worse, worst) adj.劣质的, 有害的, 坏的(be bad for ... /对..有害; have a bad cold 得重感冒; go bad/变质不能食用); 

badly adv. 坏, 不良地, 严重地, [口]非常;

balance n. 天平, 秤, 平衡 ( keep balance/保持平衡;  lost balance/失去平衡; strike a balance between .../在..之间取得平衡;  be off balance/不稳); 

ban (banned; banning) n./v. 禁止, 取缔 (lay [put] (a) ban on../禁止(某事); lift [remove] the ban (on)/(对...)解禁; place [the] ... under ban/对...加以禁止); 

bank n.银行, 堤, 岸;

bankrupt n.破产者 adj.破产了的( go bankrupt/破产);

bare adj.无遮蔽的, 空的; (bare – naked无遮蔽的)

barely adv. 无遮蔽地, 勉强, 几乎没有(barely enough/勉强够); (barely- hardly –seldom几乎没有)

base n. 底, 基础,基地v. （与on, upon连用）根据；基于(be based on/upon: 基于); baseball n. 棒球, (a baseball team/棒球队);

basic adj. 基本的，基础的，主要的，首要的; (basic – fundamental基础的, 首要的)

basis n.基础, 基本, 根据(on the basis of/ 以..为基础);

basketball n. 篮球;

battle n.战争 (battle – fight – war战争)

be v. 是，就是；在，存在 aux.v. [与动词的现在分词连用, 构成各种进行时态];  [与及物动词的过去分词连用, 构成被动语态]e.g. The bridge was built in 1982./这桥建于1982年。[与动词不定式连用, 表示职责、义务、意图、约定、可能性等] e.g. I am to visit Mr. Green tomorrow./我明天要去拜访格林先生。 [用be和were表示虚拟语气]e.g. If I were you, .../假如我是你的话...

bear n.熊v.负担, 忍受, 生产（农作物或水果）(bore, borne)  (bear in mind/牢记在心 ); (bear – stand – put up with – tolerate – endure忍受)

beat v. 打, 敲, 击败,（心脏等）跳动(beat sb. /战胜..; beat time/打拍子 ; a heartbeat /心跳声);

beautiful adj.美丽的, 很好的; (beautiful – attractive – pretty美丽的)

beauty n. 美, 美丽, 美人(the -ties of nature/大自然的美; beauty contest/选美会; 

because　conj. 因为　(比较：because 引导从句，而 because of 引导名词性短语，如：I do it because I like it. /我做这件事是因为我喜欢; He eats because of greed, not hunger. 他不是因为饿了,而是因为贪嘴才吃的。);

become (became, become, becoming)  v. 变为, 成为, 适合;

bed n. 床, （苗）床, （花）坛(make one's bed/整理床铺; go to bed/上床，上床睡觉; single [double] bed/单人[双人]床; lie in bed/躺在床上);

bedroom n. 卧室, 寝室; 

bee n.蜜蜂, 忙碌的人;

beer n. 啤酒, 一份啤酒

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