gradients造句

The courses are long and punishing, with steep gradients.
這些賽道既長又有陡坡，極具挑戰(zhàn)性。

Across geographic gradients, Levins expects allopatric races or coenospecies exist.
穿過地理梯度, 萊文斯預(yù)料有分布區(qū)不重疊的小種或近群種.

And the evidence is that the differences in status cause these " gradients "
這是一種明顯的情況,即地位的差異導(dǎo)致了這種 “ 梯度變化 ”

• #gradients