adj. 薄的，瘦的，稀少的，细的；vt. 使瘦，使淡，使稀疏；vi. 变薄，变瘦，变淡；adv. 稀疏地，微弱地；
[例句] A thin cable carries the signal to a computer...
[例句] James's face was thin, finely boned, and sensitive.
adj. 小的，琐碎的，娇小的，幼小的；adv. 不多，略微，少许，一点，短时间地；n. （表示否定）微少，没有多少，短时间；det. （数量上）微少的，少到几乎没有的，（a little）少量的，一些；
[例句] I had little money and little free time...
[例句] I find that I need very little sleep these days...
vi. 笑，发笑，嘲笑，（特别表示因成功而）处于有利地位；vt. 以笑表示，以笑感动[影响]；n. 笑，笑声，引人发笑的事或人，笑料；
[例句] He was about to offer an explanation, but she was beginning to laugh...
[例句] He laughed with pleasure when people said he looked like his dad...
n. 地面，地板，楼层，底部，议员席；vt. 铺地板，击败，打倒；
[例句] Jack's sitting on the floor watching TV...
[例句] We painted the wooden floor with a white stain.
n. 害怕，可能性，（对神等的）敬畏，忧虑；vt. 畏惧，害怕，为…忧虑（或担心、焦虑），敬畏（神等）；vi. 害怕，忧虑，感到害怕，惧怕；
[例句] I was sitting on the floor shivering with fear.
[例句] ...boyhood memories of sickness and fear of the dark...
n. 猛击，猛撞，巨响，爆炸声；vt. 猛击，猛撞；vi. 发出砰的一声，砰砰作响，砰地敲[推，扔]，男性和（女性）性交；adv. 正好，完全地；
[例句] I heard four or five loud bangs...
[例句] She slammed the door with a bang...
vi. 淹没，下落，退去，渐渐进入；vt. 使下沉，使下垂，砸入地面，使败落；n. 水池，洗涤槽，污水坑；
[例句] The sink was full of dirty dishes.
[例句] ...the kitchen sink.
n. 自己的事物，自己人；vt. 拥有，承认；vi. 承认；adj. 自己的，特有的；
[例句] My wife decided I should have my own shop...
[例句] ...another group of patients who were taught to change their own dressings...
n. 洞，孔，洞穴，穴，缺陷，绝境；vt.& vi. （在…上）打洞或穿孔；vi. 凿洞，（高尔夫球等）进洞；
[例句] He took a shovel, dug a hole, and buried his once-prized possessions...
[例句] The builders had cut holes into the soft stone to support the ends of the beams.
adj. 有头的，有标题的；v. 用头顶（球）( head的过去式和过去分词 )，带领，使朝…方向行进，位于排行之首；
[例句] She turned her head away from him...
[例句] He took a puff on his pipe and shook his head.
n. 地球，陆地，泥土，兽穴；vt. 把（电线）接地，盖（土），追赶入洞穴；vi. 躲进地洞；
[例句] The space shuttle Atlantis returned safely to earth today. “
[例句] ...a fault in the Earth's crust.
vt. 涉及，关系到，使关心，使担忧，参与；n. 关心，关系，有关，顾虑，公司或企业；
[例句] The group has expressed concern about reports of political violence in Africa...
[例句] The move follows growing public concern over the spread of the disease...
v. 降低( fall的第三人称单数 )，来临，成为，降落；
[例句] Her father fell into the sea after a massive heart attack...
[例句] Prince Charles has again fallen from his horse...
n. 速度，比率，等级，（利息等的）费率；vt. 估价，值得，责骂，定级；vt.& vi. 认为，把…算作；vi. 被评价，被认为，被列入，申斥；
[例句] The rate at which hair grows can be agonisingly slow...
[例句] The world's tropical forests are disappearing at an even faster rate than experts had thought.
vt.& vi. 卖，售，使好卖，使接受，使赞成，销售；vt. 经销，推销，出卖，欺骗；n. 销售，欺骗，失望，推销术；vi. 卖，出售，受欢迎，有销路；
[例句] I sold everything I owned except for my car and my books...
[例句] His heir sold the painting to the London art dealer Agnews...
adj. 暖和的，温暖的，保暖的，热情的，暖调的；vt.& vi. （使）变暖，被加热，暖和起来；vt. 加热，使热情，使兴奋；n. 暖和的地方；vi. 加温，感兴趣，变得友善或友好；
[例句] Wheat is grown in places which have cold winters and warm, dry summers...
[例句] Because it was warm, David wore only a white cotton shirt...
n. 门，户，出入口，一家[户]，通道；
[例句] I knocked at the front door, but there was no answer...
[例句] The policeman opened the door and looked in...
adv. 大约，旋转，到处，四处，在周围；prep. 围绕，在附近，前后，左右，在…周围；
[例句] She looked at the papers around her...
[例句] Today she wore her hair down around her shoulders.
adj. 有背的，有财力支持的；v. （使）后退， （使）倒退( back的过去式和过去分词 )，支持，作…的衬里，（用证据或理论来）证实（一种理论或主张）；
[例句] The photographers drew back to let us view the body...
[例句] She stepped back from the door expectantly...
n. 凝固( set的名词复数 )，（一）套，布景，集；v. 放( set的第三人称单数 )，安插，树立，安排；
[例句] There must be one set of laws for the whole of the country...
[例句] I might need a spare set of clothes...