词典释义：
双语例句
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In treatment B, the leaf number, height, biomass, and the number of Crofton weed seedlings were much lower that those in control.
而提前播种苇状羊茅样地紫茎泽兰幼苗数量、生物量和分蘖数均显著低于对照，而株高与对照无显著性差异；