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在《PONS词典》中的词汇

under·ˈmine 动词 trans

1. undermine (tunnel under):

to undermine sth
to undermine a dam/river bank

2. undermine (weaken):

to undermine sth
to undermine sth
to undermine sb's [self-]confidence
to undermine a currency
to undermine sb's health
to undermine hopes
Present
Iundermine
youundermine
he/she/itundermines
weundermine
youundermine
theyundermine
Past
Iundermined
youundermined
he/she/itundermined
weundermined
youundermined
theyundermined
Present Perfect
Ihaveundermined
youhaveundermined
he/she/ithasundermined
wehaveundermined
youhaveundermined
theyhaveundermined
Past Perfect
Ihadundermined
youhadundermined
he/she/ithadundermined
wehadundermined
youhadundermined
theyhadundermined