41. Agree with sb. 同意某人的观点

a) I agree with you about the gun situation.

42. in agreement with 同意, 一致

a) Not all scholars are in agreement with her, however.

43. ahead of 在…之前, 超过

a) Our company is ahead of other makers of spare parts for the airplane.

b) 我们公司制造飞机零部件比别家的业绩好。

44. ahead of time 提前

a) This dish may be prepared a day ahead of time and refrigerated.

45. in the air 1)不肯定, 不具体 2)在谣传中 3)到处弥漫

b) Excitement was in the air. 到处充满了兴奋之情

46. above all (=especially, most important of all) 尤其是, 最重要的

a) Above all, do not be too proud to ask for advice.

47. in all adv. (=altogether) 总共, 总计

a) In all some 15 million people live in the selected areas.

48. after all 毕竟,到底;

a) It has turned out to be a nice day after all.

b) 天气终于转晴了。

49. (not) at all 一点也不;

a) I'm not at all sorry I came, I'm glad!

b) 我来了一点也不遗憾，我很高兴。

50. all at once(=suddenly)突然;

a) I feel terribly sleepy all at once.

b) All at once there was someone knocking on the door