例如树木会反应下雨而发芽成长，若是接著又久旱不雨，当初那些雨后春笋统统晒到干枯，闪电一打，就很容易引起森林大火。
Trees, for example, react to downpours with a spurt of growth. During the longer droughts that follow, the extra biomass then dries up so that if lightning strikes, forests burn more spectacularly.
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