A: Did you hear about the new bilateral agreement between Russia and France?
B: No, not yet, I have not listened to the news today.
bilateral a. 双边的，双方的
A: Did anyone call the fire brigade when the fire was detected?
B: yes, but when they arrived it was too late, the smoke was already billowing out of the windows.
billow n. 巨浪;如波涛滚滚向前之物(如浓烟，浓雾等)
A: Please don’t throw your rubbish on the ground, there is a bin beside the door.
B: Oh, sorry, I did not see it.
bin n. 1.垃圾箱; 2.大贮藏箱
A: Oh, I wish I had brought my binoculars to the concert.
B: Yeah, the performers look so small from the back row.
binoculars n. 双筒望远镜
A: You have had such an interesting life, I would love to read your biography some day.
B: Oh, really. I hadn’t planned on writing one.
biography n. 传记
A: Last night was bizarre, it snowed when it should have been dry.
B: Well, it is difficult to predict the weather.
bizarre a. 奇形怪状的，怪诞的
A: Why did you steal the money?
B: I was blackmailed into it.
blackmail vt./n. 敲诈，勒索，要挟
A: My grandfather used to work with horses.
B: Was he a blacksmith?
blacksmith n. 铁匠，锻工
A: Is there a toilet in this building? My bladder is about to burst.
B: Just down the hallway, on the right.
bladder n 1. 膀胱;2. 囊状物.
A: I read in the newspaper that the city was besieged by unexpected attack.
B: Oh, I never trust the newspapers.
besiege vt. 1. 围攻，围困;2. 围住，拥在……周围
A: I bestow this gift upon you as a sign of my gratitude and thanks.
B: You are too generous.
bestow vt. 赠与，授予
A: Why are you looking so upset?
B: My girlfriend has just betrayed me.
betray vt. 1. 背叛，出卖;2.失信于，辜负;3. 泄露(秘密等);4. (非故意地)暴露，显露
A: Would you like a hot beverage, Richard?
B: No thanks, Peter. I just had a coffee.
beverage n. 饮料
A: I was bitten on the leg as I walked through the gate.
B: Did you not read the sign, “Beware of the Dog”?
beware v. 谨防，当心
A: Every time I look at the night sky I am bewildered by the stars.
B: Me too, they are fascinating.
bewilder vt. 使迷惑，使难住
A: It is difficult to write this article without being biased.
B: Well, make sure you look at the issue from both sides before you start.
bias n. 偏见，偏心，偏袒
A: Now students, make sure you include a complete bibliography at the end of your work.
B: But that takes so much time.
bibliography n. 1. 参考书目;2. (有关某一专题的)书目