rocker keel line纵: release; set free; let go挠: scratch龙骨线: keel-line龙骨线: keel line; keel-line弧形龙骨线: rocker keel line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:纵挠龙骨线,即可在微信中查询翻译