Others die, and by spring, before the arrival of a new crop of pups, the pack size has often diminished.
还有些死了的。在春天新生狼崽即将到来之前时，狼的数目往往是减少的。
If you transplant them, the roots will be destroyed and the crop will die.
如果你移植它们，它们的根就会受到破坏，水稻就会死。
Killing mechanism: atmospheric dimming, acid rain, crop die-off.
杀伤机制：大气能见度降低、酸雨、作物死亡。
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