重點詞匯和詞組：
the United States
[詞典] 美國，美利堅合眾國;
[例句]The example of the United States illustrates this point
美國的例子證明了這壹點。
as well as 英[?z wel ?z] 美[?z w?l ?z]
adv. 也，又;
[詞典] 既…又…; 除…之外（也）; 此外;
[例句]They visited some factories, hospitals as well as the school.
他們參觀了這所學校，還參觀了工廠和醫院。
tire 英[?ta?(r)] 美[ta?r]
vt. 使…疲憊; 使…厭煩;
vi. 疲勞; 厭煩;
n. 輪胎; 頭飾;
[例句]If driving tires you, take the train.
如果開車覺得累，就乘火車吧。