access barriers使用: make use of; use; employ; ap ...的: 4次方是 The fourth power of 2 i ...阻碍: hinder; block; impede; imped ...机会的阻碍: opportunity barriers后发生的阻碍球: snookered after a foul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:使用的阻碍,即可在微信中查询翻译