一些罕见的生物偶尔会被冲上海滩，但是它们在海里却很少被捕到。
Occasionally, , unusual creatures are washed to the shore, but they are rarely caught out at sea.
各地报道称，天空中偶尔会飘落罕见的红色、黄色、黑色雪花，这可能是由于花粉、风吹的尘土或灰烬和烟灰粘在雪上面造成的。
There are occasional reports of red, yellow, or black snow falling from the sky, probably due to pollen, windblown dust, or ash and soot.
在百老汇偶尔碰到一怪人并不罕见。
It is rarely uncommon to come across an eccentric in Broadway.
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