1. arrive at
   到达,抵达,来到
   
2. at a loss
   adv.困惑,亏本地
   
3. at a premium
   在票面价值以上;非常珍贵,短缺;很受尊重
   
4. at a time
   一次,每次,一下子,曾经,同时
   
5. poke at
   轻轻地拨动, 翻找
   
6. sergeant at arms
   n. （会议，法庭等处的）警卫官
   
7. at a low price
   【经】 廉价, 低价
   
8. at the least
   至少, 起码, 无论如何
   
9. at all
   完全,丝毫,根本
   
10. at the worst
    在最坏的情况下, 在最不利的情况下, 考虑到最不利的方面
    
11. stay at
    暂住在..., 投宿在...
    
12. action at law
    【经】 法律诉讼
    
13. at all costs
    adv.( =at any cost)不惜任何代价,无论如何
    
14. at any cost
    adv.=at all costs无论如何
    
15. at any expense
    不惜代价,不管费用多大
    
16. at any rate
    adv.无论如何,至少
    
17. at arm's length
    adv.疏远,在手臂伸得到的地方
    
18. at bay
    处于绝境,走投无路,背水一战
    
19. at best
    最好,至多,充其量
    
20. at bottom
    adv.(=at the bottom)实际上
    
21. at close range
    在近距离内,接近地
    
22. at ease
    安逸,自在,无拘束,高枕无忧 feeling comfortable and confident. 安适，自在
    
23. at fault
    有过失,有毛病,有错误,应受责备
    
24. at first
    起初,首先,一开头
    
25. at first blush
    乍一看,初见
    
26. at first glance
    初看上去,第一眼看上去,乍看起来
    
27. at first sight
    初看上去,乍一看,第一眼看上去
    
28. at hand
    adv.在手边,在附近,即将到来
    
29. at heart
    adv.在内心里
    
30. at home
    adv.在家,在本地,在国内,熟悉
    
31. at issue
    在争论中;不和的;待裁决的
    
32. at large
    全部的,整个的,总的说来;自由的,逍遥法外的;无固定职业的
    
33. at last
    最后,最终,终于
    
34. at least
    至少,起码,无论如何
    
35. at leisure
    闲着的,有空的;从容不迫地
    
36. at length
    最后,终于;详细地,充分地
    
37. at long last
    最终,终于
    
38. at most
    adv.至多
    
39. at odds
    不和,冲突,反对,有分歧
    
40. at once
    立刻,马上;同时
    
41. at one time
    adv.同时,曾经
    
42. at peace
    adv.处于和平状态
    
43. at present
    adv.现在,目前
    
44. at random
    adv.胡乱地,随便地
    
45. at rest
    adv.安眠,长眠,静止
    
46. at sea
    adv.(=all at sea)在大海上,迷茫,弄错 在航行
    
47. at the most
    至多,充其量
    
48. at the ready
    处于准备状态,各就各位,预备
    
49. at the same time
    adv.同时,但是
    
50. at the start
    开始时
    
51. at times
    adv.有时,不时
    
52. at variance
    adv.有分歧,不和
    
53. at will
    adv.随意,任意
    
54. at work
    在工作,在从事;在起作用,在运转
    
55. at worst
    adv.在最坏的情况下
    
56. bridle at
    蔑视…,瞧不起…
    
57. bristle at
    生…的气,对…发怒
    
58. call at
    打给某人,访问,停靠
    
59. close at hand
    adv.就在眼前
    
60. connive at
    视而不见,默许,纵容
    
61. excel at
    擅长…
    
62. foam at the mouth
    口吐白沫,怒气冲冲,大发雷霆
    
63. get at
    到达,够得着;着手,动手;了解,理解,发现;意指,射影,针对
    
64. gnaw at
    v. 啃,咬,侵蚀
    
65. ill at ease
    adj.不安的
    
66. laugh at
    因…而发笑;嘲笑;漠视,把…付诸一笑
    
67. look at
    看,检查,过目;考虑,着眼于
    
68. peck at
    啄,凿,一点一点地吃
    
69. pick at
    啄,腐蚀;拉,扯;找岔子,挑剔
    
70. pluck at
    抓住,拽住
    
71. pull at
    猛拽,用力拉;深吸,大口地喝
    
72. quail at
    v. 畏缩
    
73. snap at
    抓住,咬住;厉声对…喝道
    
74. wink at
    对某人眨眼睛,向某人使眼色;假装没看见
    
75. work at
    从事于…,致力于…,钻研…
    
76. character-at-a-time printer
    单字符打印机
    
77. line-at-a-time printer
    行式打印机，行式印刷机
    
78. page-at-a-time printer
    页式打印机，页式印刷机
    
79. all at once
    adv. 突然
    
80. be at pains
    费尽力气, 煞费苦心, 尽力设法
    
81. chip at
    拿...取笑 挑...毛病
    
82. eat at
    困扰, 烦扰
    
83. one at a time
    一次一个人
    
84. chip away at
    劈下..., 削去..., 击碎...
    

1. Let's have another look at the fly wheel.
   让我们再检查一下飞轮。
2. At first nobody noticed the child's disappearance.
   起初谁都没有注意到小孩不见了.
3. Have a look at this picture.
   请看一看这幅画。
4. The bull rushed at him.
   公牛向他冲来。
5. He sought shelter at his friend's house.
   他在朋友家避难。

　2个名词解释