凯瑟勒表示，在地质学历史上水下的甲烷释放曾发生过，有时是喷发，有时是千万年地丝丝泄漏。
Underwater methane releases have occurred in geologic history, sometimes as big burps of gas and sometimes as seeps lasting hundreds or thousands of years, Kessler said.
那曾连接着彼此的丝丝细线，仿佛从未断过。
It has connected to each other Cecil thin, as if never broken off.
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