brain

[the control center of thought, emotions and body activity of all creatures]

Scientists continue to discover new information about the chemistry of the brain.英语四级考试作文

brave

[having no fear]

Leaving home was a brave decision.

bread

[a food made from grain]

We have bread at every meal.

break

[(1) to divide into parts by force; (2) to destroy]

The glass broke into many pieces. (1)

Years of hard work broke his health, but it did not break his spirit. (2)

breathe

[to take air into the body and let it out again]

Breathe deeply before you begin your speech.

bridge

[a structure built over a waterway, valley or road so people and vehicles can cross from one side to the other]

The city needs a new bridge across the river.

brief

[(1) short; (2) not long]

Many people wish to speak, so please keep your comments brief. (1)

The car slowed down briefly, then speeded up. (2)

bright

[(1) giving much light; (2) strong and clear in color]

Bright sunlight hurts my eyes. (1)

The new grass is bright green. (2)

bring

[to come with something]

Sam will bring Tracy to the party.

broadcast

[(1) to send information, stories or music by radio or television; (2) a radio or television program]

VOA broadcasts the news in Special English. (1)

The Special English broadcast can be heard almost everywhere. (2)

brother

[a male with the same father or mother as another person]

I have three brothers, but no sisters.

brown

[having the color like that of coffee]

Richard has brown hair and brown eyes.

budget

[a spending plan]

Congress decided to add money to the education budget.

build

[to join materials together to make something]

Tim plans to build a house for his dog.

building

[anything built for use as a house, factory, office, school, store or place of entertainment]

My office is in that building next to the hotel.

bullet

[a small piece of metal shot from a gun]

The bullet hit the exact center of the target.

burn

[(1) to be on fire; (2) to destroy or damage by fire]

The candles burned brightly enough for me to read the book. (1)

The wildfire burned much of the forest. (2)

burst

[to break open suddenly]

The dam burst and sent a wall of water rushing down the valley.

bury

[to put into the ground and cover with earth]

Where do you think they buried the treasure?

bus

[a public vehicle to carry people]

Ride the A-17 bus to 4th and Independence Avenue.

business

[(1) one's work; (2) buying and selling to earn money; (3) trade]

My business is writing radio programs. (1)

The Internet is creating many new markets for business. (2)

I have done business with that company for many years. (3)

busy

[(1) doing something; (2) very active]

Are you busy now? (1)

George was very busy this morning with an emergency case. (2)

but

[(1) however; (2) other than; (3) yet]

She knew who called but I did not know. (1)

The boy ate nothing but candy. (2)

Jean was tired but she could not get to sleep. (3)

buy

[to get by paying something, usually money]

Where did Lila buy those great clothes?

by

[(1) near; at; (2) next to; (3) from ; (4) not later than]

Please sit here by me. (1)

They walked by the river. (2)

They performed a play by William Shakespeare. (3)

Her mother said that she had to be home by midnight. (4)