Question: 苹果手表系列1是何时问世的
Answer: 2015-04-24; 2015 april, 24; 24 4月 2015; 24/04/2015; 2015-04-24; 24 04 2015; 04-24-2015; 04/24/2015; 04 24 2015; 24-04-2015; 2015 4月 24; 2015 04 24