1、
He would let it leap from the grass into the thicket to burn the understory shrubs.
他想让火从草地蔓入灌木丛,烧掉那些林下灌木.
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Groves of elderly aspen tremble in the wind, but no sprouts push up in the understory.
年老的白杨树丛在风中颤动, 下层植被却没有新树苗生长.
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