door holder门: entrance; exit; door; gate开: open; turn on; switch on; be ...后: behind; back; rear固定: fixed; regular的: 4次方是 The fourth power of 2 i ...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:门开后固定门扉的装置。，即可在微信中查询翻译
