boost (v) to increase the strength or value of something, to help and encourage something 推动

[例]  Lower interest rates will greatly boost the economy.

 bottleneck [ 5bCtl7nek ] (n.) a restriction in the normal work flow瓶颈，障碍

[例]  We’ve got a bottleneck in our supply operations.

 bottom [5bRtEm]1.(adj.) lowest最底处的

 [例]  rock-bottom price

2. (v.) bottom out, reach the lowest point 跌至底点

 bounce [ bauns ] (v.) refuse to pay a cheque and return it to the bearer because there is not enough money in the payer’s account支票被银行退票

[例]  Two of my cheques were bounced last week.

 brainstorm [ 5brein7stC:m ] (n. and v.) an approach to problem-solving in which a group of people meet to provide wide-ranging ideas on an issue集体讨论

[例] The members of the board gave a brainstorm during the meeting held yesterday.

 branch [ brB:ntF ]1.(n.) local office of a large business分公司

[例]  We have branches throughout the country.

2.(v.) To enlarge the scope of one’s interests, business, or activities扩展

[例]  The partners are looking into branching out into Europe.