stratified driftstratified tillwashed drift层: I storey; tier; stratum状: form; shape冰: ice碛: moraine desert非层状冰碛: unstratified drift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:层状冰碛,即可在微信中查询翻译