1.avoid v.避開，躲避(to keep oneself away from)

例:Having learned of an upcoming environmental ban on a certain chemical, a company designs its new plant to employ processes that avoid use of that chemical.

派生詞:avoidance(n．逃避;空缺)

同根詞：devoid(a．缺乏的)

2.backwater n.回水 (water backed up n its course);死水( a body of water that is out of the main current of a larger body )

例:The Emerald River annually overflowed its banks, creating backwaters.

3.bacterium n.細菌(simplest and smallest forms of plant life, microscopic organisms that are often a cause of disease)

聯想記憶：bac(看作back背后)+ter+ium --總是偷偷（背后）讓人得病的東西--細菌

例:Scientists hypothesize that in high salt environments the antibiotic becomes ineffective at killing harmful bacteria.

派生詞:bacterial(a．細菌的;由細菌引起的)

4.balcony n.陽臺(veranda);包廂，樓座(loge)

發音記憶：‘包給你”一把整個包廂都“包給你”

例:This theater has 100 balcony seats.

5.ballistic a．彈道的，發射的(of things that are shot or fired through the air, eg.bullets, missles, etc.)

聯想記憶：ball（子彈）+istic --發射子彈的--彈道的

例:ballistic missiles彈道導彈

6.bankruptcy n．破產，倒閉(the quality or state of being bankrupt)

詞根記憶：bank(銀行)+rupt(斷)+cy--銀行都關門了--破產

例:The automobile company was brought back from the verge of bankruptcy.

同根詞：corruption(n.腐敗)

7.bar v.(from)禁止，阻止(to prevent, forbid)；n.棒；酒吧(a place where drinks are served)

例:The purpose of the legislation is to bar companies from financing their own unions．//candy bar棒棒糖

8.barb n.倒鉤(a sharp projection extending backward)；傷人的話(a biting or pointedly critical remark or comment);v.裝倒鉤于(to fumish with a barb)

例:The honeybee's stinger is heavily barbad and stays where it is inserted.

9.bark n.樹皮（無復數）(tough outer covering of tree trunks and branches)

注意：bark還有一些動詞意思是“狗吠；咆哮;剝樹皮”

10.barraacks n.兵營 (large buildir gs for soldiers to love in)

例:Nightingale was the first to notice the poor living conditions in British military barracks in peacetime.