exogeosynclines前: front渊: deep pool前渊: fore deep; fore trough; foredeep地槽: geosyncline; trough深渊地带: abyssal benthic zone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:前渊地槽,即可在微信中查询翻译