we must harness it whenever possible as conventional fuels will not be around much longerwhenever是介词还是副词呢

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wemustharnessitwheneverpossibleasconventionalfuelswillnotbearoundmuchlongerwhenever是介词还是副词呢wemusthar

we must harness it whenever possible as conventional fuels will not be around much longerwhenever是介词还是副词呢
we must harness it whenever possible as conventional fuels will not be around much longer
whenever是介词还是副词呢

we must harness it whenever possible as conventional fuels will not be around much longerwhenever是介词还是副词呢
“我们必须尽可能地利用它,因为传统燃料不可能用太久”
whenever是连接副词,引起时间状语

介词

副词