frustrate

US /ˈfrʌsˌtret/

UK /frʌ'streɪt/

B1TOEIC
v.t.Transitive VerbTo make annoyed because things don't go well
The difficult math problems frustrate the young students
v.t.Transitive VerbTo prevent (a plan or intention) from succeeding.
The bureaucracy frustrates small businesses.
v.t.Transitive VerbTo cause to have no effect; nullify.
The army was able to frustrate the enemy's attack.

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