If aliens did visit us, I'd be embarrassed to tell them we still dig fossil fuels from the ground as a source of energy.

If aliens did visit us, I'd be embarrassed to tell them we still dig fossil fuels from the ground as a source of energy.

如果外星人真的来拜访我们，我会很尴尬地告诉他们，我们仍然从地下挖掘化石燃料作为能源。

-- Neil deGrasse Tyson 尼尔·德格拉西·泰森