她偶然发现了一个名为 Blotanical 的在线社区，这是一个园丁论坛，其中很多园丁都对可持续发展感兴趣。
She stumbled upon an online community called Blotanical, a forum for gardeners, many with an interest in sustainability.
仅仅因为偶然性这个解释被排除，并不能证明心灵感应一定存在；还有很多其他的方法可以得到正面的结果。
Just because chance had been ruled out as an explanation did not prove telepathy must exist; there were many other ways of getting positive results.
近年来很多野外火灾是人为的，要么是故意，要么是偶然。
These days many wildfires are started by humans, either on purpose or by accident.
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