B

baby - n. a newly born creature

back - n. the part behind the front; ad. the other way from forward?

bad - ad. wrong; acting against the law; not good?

balance - v. to make two sides or forces equal?

ball - n. something round?

balloon - n. a device of strong， light material that rises when filled with gas lighter
than air?

ballot - n. a piece of paper used for voting?

ban - v. to not permit; to stop; n. an official restriction?

bank - n. an organization that keeps and lends money?

bar - v. to prevent or block?

barrier - n. anything that blocks or makes an action difficult?

base - n. a military center; v. to establish as a fact ("Her research was based on
experiments.")?

battle - n. a fight between opposing armed forces?

be - v. to live; to happen; to exist?

beat - v. to hit again and again?

beauty - ad. that which pleases the eye， ear or spirit?

because - prep. for the reason that ("He left because he was sick.")?

become - v. to come to be?

bed - n. a sleeping place?

before - prep. earlier?

begin - v. to do the first part of an action; to start?

behind - ad. at the back of; in back of?

believe - v. to think; to feel sure of; to accept as true; to trust?

bell - n. an instrument that makes a musical sound ("a church bell")?

belong - v. to be owned by; to be a member of?

below - ad. lower than?

best - ad. the most good?

betray - v. to turn against; to be false to?

better - ad. more good than?

between - ad. in the space or time that separates; from one to the other ("talks
between two nations")?

big - ad. of great size; not small?

bill - n. a legislative proposal?

biology - n. the scientific study of life or living things in all their forms?

bird - n. a creature that flies?

bite - v. to cut with the teeth?

black - ad. dark; having the color like that of the night sky?

blame - v. to accuse; to hold responsible?

blanket - n. a cloth cover used to keep warm?

bleed - v. to lose blood?

blind - ad. not able to see?

block - v. to stop something from being done; to prevent movement?

blood - n. red fluid in the body?

blow - v. to move with force， as in air ("The wind blows.")?

blue - ad. having the color like that of a clear sky?

boat - n. something built to travel on water that carries people or goods?

body - n. all of a person or animal; the remains of a person or animal?

boil - v. to heat a liquid until it becomes very hot?

bomb - n. a device that explodes with great force; v. to attack or destroy with
bombs?

bone - n. the hard material in the body?

book - n. a long written work for reading?

border - n. a dividing line between nations?

born - v. to come to life; to come into existence?

borrow - v. to take as a loan?

both - ad. not just one of two， but the two together?

bottle - n. a container， usually made of glass， to hold liquid?

bottom - ad. the lowest part of something?

box - n. something to put things into; a container， usually made of paper or wood?

boy - n. a young male person?

boycott - v. to refuse to take part in or deal with?

brain - n. the control center of thought， emotions and body activity of all creatures?

brave - ad. having no fear?

bread - n. a food made from grain?

break - v. to divide into parts by force; to destroy?

breathe - v. to take air into the body and let it out again?

bridge - n. a structure built over a waterway， valley or road so people and vehicles
can cross from one side to the other?

brief - ad. short; not long?

bright - ad. giving much light; strong and clear in color?

bring - v. to come with something?

broadcast - v. to send information， stories or music by radio or television; n. a radio
or television program?

brother - n. a male with the same father or mother as another person?

brown - ad. having the color like that of coffee?

budget - n. a spending plan?

build - v. to join materials together to make something?

building - n. anything built for use as a house， factory， office， school， store or place
of entertainment?

bullet - n. a small piece of metal shot from a gun?

burn - v. to be on fire; to destroy or damage by fire?

burst - v. to break open suddenly?

bury - v. to put into the ground and cover with earth?

bus - n. a public vehicle to carry people?

business - n. one’s work; buying and selling to earn money; trade?

busy - ad. doing something; very active?

but - conj. however; other than; yet?

buy - v. to get by paying something， usually money?

by - conj. near; at; next to ("by the road"); from ("a play by William Shakespeare");
not later than ("by midnight")