Reuters • A tennis ball gets compressed against the racquet... http://reuters.tumblr.com/post/28630741720/a-tennis-ball-gets-compressed-against-the-racquet
tennis ball, Switzerland’s Roger Federer, London 2012 Olympic Games. 網球, 瑞士的費德勒, 2012年倫敦奧運會,.
Reuters • A tennis ball gets compressed against the racquet... http://reuters.tumblr.com/post/28630741720/a-tennis-ball-gets-compressed-against-the-racquet