vs.

    ascertain 对比 ensure
    分析 词典对比 组词对比
    (1).中国译典 ascertain ensure
    vt.
    查明,探听,弄清;
    扩展解释:n. 【化学】
    确定,调查,探明;确定,调查,弄清
    【法律专业】
    查明 ,判明
    vt.
    1. 查明确定弄清[+(that)][+wh-]
    vt.
    确保
    扩展解释:【英汉药名关联词典】
    〖药品商品名〗安素
    v. 【法律专业】
    保证 ,保证,保障
    vt.
    确保,保护,获得
    vt.
    1. 保证;担保[O9][+that][+v-ing]2. 使安全,保护[Q][(+from/against)]
    (2).维基词典 ascertain ensure
    To find out definitely; to discover or establish.
    To make (someone) certain or confident about something; to inform.
    To establish, to prove.
    To ensure or effect.
    To make a pledge to (someone); to promise, guarantee (someone of something); to assure. 14th-18th c.
    To make sure or certain of something (usually some future event or condition). from 18th c.
    (3).韦伯斯特词典 ascertain ensure
    To render (a person) certain; to cause to feel certain; to make confident; to assure; to apprise.
    To make (a thing) certain to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine.
    To find out or learn for a certainty, by trial, examination, or experiment; to get to know; as, to ascertain the weight of a commodity, or the purity of a metal.
    To make sure. See Insure.
    To betroth.
    简典