dorsal positionsupine position背: body's back卧: lie位: place; location背卧位, 仰卧位: dorsal position; supine position惯性背卧位: dorsal inertia position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:背卧位，即可在微信中查询翻译
