11. aggravate v. 加重 >Smoking ~s cold.
12. alleviate v. 減輕 >No one can ~ my pain.
13. alternate v./a 交替(的) >a day of ~ sunshine and rain /Day and night ~
14. ambiguous a. 歧義的 >The policeman is looking for a man with one eye. Why not use two? 你知道此幽默在何處？
15. amplify v. 擴大(聲音)>
16. analogy n. 類比 by analogy
17. anonymous a. 匿名的 I received an ~ letter.
18. applaud v. 鼓掌; 贊許> I ~ your suggestion.
19. apt a. 易于 >One is ~ to make mistakes if given too much pressure.
20. array n. 陳列, 一系列>the ~ of fruit and vegetables in the supermarket