B

business

n. 商业 例句：His father is in business.

bank

n. 银行 例句：The bank is next to the post office.

bring

v. 带来 例句：Bring your notebook tomorrow.

brown

adj. 棕色的 例句：He has brown eyes.

back

n. 背部；后面 例句：Come back before six.

become

v. 变成 例句：He became a teacher after college.