block something out
phrasal verb with block verb [ T ] uk/blɒk/ us/blɑːk/
(STOP FROM PASSING)
挡住（光线或噪声）
to stop light or noise from passing through something
The tree outside the window blocks out the sun. 窗外的树遮住了阳光。
(STOP FROM THINKING)
不去想（不愉快的往事）
to stop yourself from thinking about an unpleasant memory because it upsets you
He's trying to block out memories of the accident. 他努力不去回想那场事故。