vehicle[ˈviːɪk(ə)l]

【词频】★★★★☆

n. 车辆；交通工具；(实现目的的)工具；手段；媒介

【例】n. 车辆

（2015湖南）It’s about time they had to be registered and insured, so when they do hit a pedestrian or a vehicle, or cause an accident, at least they can be treated and there might be an opportunity to claim.

【译】他们现在(骑自行车的人)必须去登记和投保了，这样当他们撞了行人或车辆或造成交通事故时，至少他们能够得到处理，而且也可能有机会 索赔。

weakness[ˈwiːknəs]

【词频】★★★★☆

n. 弱点；缺点；软弱；衰弱；虚弱；(对人或事物的)迷恋

【例】n. 虚弱

（2010湖南）Unexplained muscle pain or weakness,especially if you have a fever or feel very tired.

【译】尤其当你发烧或感觉特别疲惫时，会出现不明原因的肌肉酸痛或者虚弱。

【派】weak [wiːk] adj. (身体)无力的；虚弱的；意志薄弱的；稀薄的；稀释的；(货币、经济、产业、政府等)疲软的；有崩溃危险的

weaken [ˈwiːkən] v. 削弱；减弱；(使) (决心)动摇；使虚弱；使无力；使损坏

【例】v. 削弱

（2008江西）In recent years, IP rights have been the focus of a great deal of discussions because of a technology which looks set to weaken them altogether: the Internet.

【译】近年来，知识产权一直是众多议论的焦点，这是因为出现了一项看起来会把它们全部削弱的技术：互联网。

behave[bɪˈheɪv]

【词频】★★★★☆

v. 表现；守规矩

【派】behavior [bɪˈheɪvjə(r)] n. 行为

【例】n. 行为

（2015上海）When involved in deliberate play activities, children are less concerned with the outcome of their behavior (whether they win or lose) than with the behavior (having fun).

【译】参与精心设计的比赛活动时，孩子们不太关心他们行为的结果(是赢还是输)，而是更加关心这个行为本身 (是否有乐趣)。

【形】behalf [bɪˈhɑːf] n. 代表；利益

behind[bɪˈhaɪnd] prep. 支持；落后于；晚于 adv. 在后地；在原处

block[blɒk]

【词频】★★★★☆

n. 块；障碍物

v. 阻止；阻塞；限制

【同】obstacle

【例】v. 阻止

（2011重庆）In the early 16th century, people thought that dirt on the skin was a means to block out disease, as medical opinion had it that washing off dirt with hot water could open up the skin and let ills in.

【译】16世纪初，医学界认为用热水去除污垢会让皮肤毛孔张开致使疾病侵入，因此人们认为皮肤上的脏污是阻挡疾病的工具。

【词组】block out ：阻挡

【派】unblock [ˌʌnˈblɒk] v. 疏通；除去……的障碍