大発生 (だいはっせい) — explosive increase (in number of pests); (severe) outbreak or upsurge of pests
大発生
だ い は っ せ い
Explosive increase (in number of pests); (severe) outbreak or upsurge of pests
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大発生 (だいはっせい) — explosive increase (in number of pests); (severe) outbreak or upsurge of pests
