B.C. Bird Boy
https://www.youtube.com/watch?v=sjsW98zBEDs 0;32 if you saw her smile, it was just contagious.
Aurora survivors forced to relive a nightmare
https://www.youtube.com/watch?v=2B_XqN0vjMU 2:37 the excitement was contagious.
64-Year-Old Diana Nyad Swims From Cuba to Florida
https://www.youtube.com/watch?v=AsZKBg07y1A 6:45 such optimism is infectious
Schlecker-Workers: Relaunch after Bankruptcy | Journal Reporters
https://www.youtube.com/watch?v=DL6fAQO0MjY 0:27 it was infectious.
Who changed the world in 2011? Jon Snow nominates people pow
https://www.youtube.com/watch?v=1sEB4s23SbE 1:39 their ideas and energy are infectious
Exclusive: Bill Clinton Says He Would Arm Libya's Rebels (04.04.11)
参考リンク
http://bridge-english.blogspot.jp/2010/05/blog-post_4280.html 肖る（あやかる）を英語でなんと言うか？
練習問題解答
a-2701 an infectious laugh
a-5905 infectious
b-1151 how laughter can be infectious
b-1397 your enthusiasm is contagious
b-4819 infectious
