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1. Oxford American Dictionary

   undermine

   • IPA[ˌəndərˈmīn]

   美式

   • v.
     erode the base or foundation of (a rock formation)；dig or excavate beneath (a building or fortification) so as to make it collapse

   • verb: undermine, 3rd person present: undermines, gerund or present participle: undermining, past tense: undermined, past participle: undermined

2. • 釋義

   v.

   動詞

   • 1. erode the base or foundation of (a rock formation) the flow of water had undermined pillars supporting the roof 同義詞 erode, wear away, eat away at, chip away, undercut反義詞 shore up, support
   • ▪ dig or excavate beneath (a building or fortification) so as to make it collapse the demolition engineers did eventually undermine two of the tower's six sides 同義詞 tunnel under, dig under, burrow under, excavate, sap
   • 2. lessen the effectiveness, power, or ability of, especially gradually or insidiously this could undermine years of hard work 同義詞 subvert, sabotage, threaten, weaken, compromise, ... 更多diminish, reduce, impair, mar, spoil, ruin, impede, hinder, damage, hurt, injure, cripple, disable, enfeeble, sap, shake, whittle away, eat away, informalfoul up, botch, put the kibosh on, drag through the mud, throw a spanner in the works of, queer the pitch of, throw a monkey wrench in the works of反義詞 enhance, improve, strengthen
3. • 更多解釋

   undermine

   • IPA[ˌʌndəˈmʌɪn]

   英式

   • v.
     erode the base or foundation of (a rock formation): the flow of water had undermined pillars supporting the roof

   Oxford Dictionary