16. attack
Attack is said to be the best form of defence.
常言道，攻击是最好的防御。
17. attempt
Her attempt at a Christmas cake had to be thrown n away.
她的圣诞蛋糕做得不好。
18. attention
Pay attention to what you’re doing.
注意你在做的事。
A pretty girl usually receives more attentions than a plain girl.
一个漂亮女孩通常比一个普通女孩得到较多的殷勤。
Attention!
立正!
19. attraction
He cannot resist the attraction of a pretty girl.
他无法抗拒漂亮女郎的吸引力。
20. authority
He is a great authority on phonetics.
他是语音学方面的权威。
