1. beforehand
adv. 提前;事先，预先;
adj. 提前的;预先准备好的;
[例句]How could she tell beforehand that I was going to go out?
她怎么会事先知道我要出去?
2. behave
vi. 表现;举止端正;自然反应;
vt. 使守规矩;
[例句]I couldn't believe these people were behaving in this way.
我难以相信这些人竟会有这种举动。
3. bewilder
vt. 使迷惑;使为难;使手足无措;使变糊涂;
[例句]The silence from Alex had hurt and bewildered her.
亚历克斯的沉默伤害了她，让她不知所措。
4. bias
n. 偏见;倾向;偏爱，爱好;斜纹;
vt. 使倾向于;使有偏见;影响;加偏压于;
adj. 斜纹的;斜的，倾斜的;斜裁的;
[例句]Bias against women permeates every level of the judicial system.
各级司法机构普遍存在对女性的偏见。
5. blame
vt. 归咎于;指责，责怪;
n. 责备;责任;过失;
[例句]The commission is expected to blame the army for many of the atrocities.
委员会理应谴责军队的诸多暴行。
6. blast
n. 爆炸;一阵(疾风等);(吹奏乐器、哨子、汽车喇叭等突然发出的)响声;突如其来的强劲气流;
vt. 击毁，摧毁;尖响; 裁判高声吹哨;枯萎：使枯萎;
vi. 爆炸;吼叫;枯萎：枯萎;攻击：严厉批评或猛烈攻击;
[例句]There is a risk that toxic chemicals might be blasted into the atmosphere.
爆炸后有毒化学物质可能会进入大气层。
7. blaze
n. 火焰;光辉;爆发;光彩;
vi. 猛烈地燃烧;发光，照耀;
vt. 在树片上刻痕指示(道路等);公开宣布;
[例句]Three people died as wreckage blazed, and rescuers fought to release trapped drivers.
汽车残骸熊熊燃烧，三人葬身火海，救援人员奋力解救被困的司机们。
8. blunt
adj. 直率的;迟钝的;钝的，不锋利的;呆板的;
vt. 使迟钝;使钝;
n. 钝的东西;小雪茄烟;
[例句]She is blunt about her personal life.
她对自己的私生活直言不讳。
9. blush
vi. 脸红，惭愧;变红;害臊，怕羞;
n. 脸红，红色;<古>一见，一瞥;
[例句]'Hello, Maria,' he said, and she blushed again.
“你好，玛丽亚，”他说，这让她脸上又泛起了红晕。
10. boast
vt. 夸口说;自夸，自吹自擂;以有…而自豪;自负有;
n. 夸口，自负;自负的事物，引以为傲的东西;自夸的话;扬言;
[例句]Witnesses said Furci boasted that he took part in killing them.
几位证人声称富尔奇曾吹嘘自己参与了对他们的屠杀。
11. bolt
n. 螺栓，螺钉;闪电，雷电;门闩;弩箭;
vt. 筛选;囫囵吞下;(把门、窗等) 闩上;突然说出，脱口说出;
vi. (门窗等)闩上，拴住; 冲出，跳出;(马等的)脱缰;囫囵吞下;
[例句]The safety belt is easy to fit as there's no need to bolt it to seat belt anchorage points.
由于不必扣在座位的固定夹上，安全带很容易就可以系好。
12. boom
vi. 发出隆隆声;快速发展;暴涨;
vt. 以低沉而有回响的声音发出;使繁荣;使迅速发展;
n. 繁荣;激增;隆隆声;
[例句]An economic boom followed, especially in housing and construction.
接着出现了经济繁荣，尤其是在房地产业和建筑业。
13. border
n. 边界;边;镶边;包边;
vt. 与…接界，在…的边上;
vt. 沿…的边，环绕…，给…镶边;
[例句]They fled across the border.
他们穿越边界逃走了。