xkcd
英文频道
中文频道
XKCD中文站,一个关于浪漫、隐喻、数字、以及语言的线上漫画。
Business Idea
Then we move to phase two. Gas stations store fuel in underground tanks. Normally, these are inaccessible except via the pump. However, with hydraulic fracturing, we-- Wait! Come back!
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