blot out

动词 blot out:

1. make undecipherable or imperceptible by obscuring or concealing
   同义词：obscure, obliterate, veil, hide

1. How can we blot out the memory of past misery.
   我们怎能忘记过去的苦难呢？
2. How can we blot out the memory of past misery?
   我们怎能忘记过去的苦难呢？