ogallala aquifer奥: profound; abstruse; difficul ...加: add; plus拉: cut; slash; slit蓄水: retain water; store water; i ...层: I storey; tier; stratum下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:奥加拉拉蓄水层,即可在微信中查询翻译