After its discovery, some argued that even if the eruptions did not cause the extinction, they weakened the biosphere and made it particularly vulnerable to the Chicxulub hammer-blow.

发现Chicxulub后，有人认为，即使火山喷发没有导致物种灭绝，也弱化了生物圈，使其在Chicxulub撞击的打击下变得特别脆弱。

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By the same token, the interests of peace in the Middle East would not be served if, in negotiations with its neighbours, Israel made concessions that weakened its defences.

CENTERFORSECURITYPOLICY: Of Lions, Lambs, and Ostriches

After its discovery, some argued that even if the eruptions did not cause the extinction, they weakened the biosphere and made it particularly vulnerable to the Chicxulub hammer-blow.

ECONOMIST: Mass extinctions