undermine
US /ˌʌn.dɚˈmaɪn/
UK /ˌʌn.dɚˈmaɪn/

動詞
1.
2.
挖空, 侵蝕
to excavate beneath the base of a wall or building so as to make it collapse
範例:
•
The engineers had to undermine the old bridge supports to replace them.
工程師們不得不挖空舊橋墩以進行更換。
•
The heavy rains began to undermine the foundations of the house.
大雨開始侵蝕房屋的地基。
在 Lingoland 學習這個單詞