double length shift双倍: gemination; double长: older; elder; senior双倍长度移位: double length shift长移位: long shift倍长，双倍长度: double length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:双倍长移位，即可在微信中查询翻译
