gradients造句
The courses are long and punishing, with steep
gradients.
这些赛道既长又有陡坡，极具挑战性。
Across geographic
gradients, Levins expects allopatric races or coenospecies exist.
穿过地理梯度, 莱文斯预料有分布区不重叠的小种或近群种.
And the evidence is that the differences in status cause these "
gradients "
这是一种明显的情况,即地位的差异导致了这种 “ 梯度变化 ”