讲解：
by accident
偶然；意外地
We met by accident at the airport.
我们在机场不期而遇。

go on
(情况、形势)继续下去,持续:
This cannot be allowed to go on.
决不允许这种情况继续下去。

grasp sth
理解；领会；领悟；明白:
They failed to grasp the importance of his words.
他们没有理解他的话的重要性。

deal with sb
对付；应付；对待
She is used to dealing with all kinds of people in her job.
她已习惯于和工作中遇到的各种各样的人打交道。

take the rap (for sb / sth)
(无辜)受罚；背黑锅
She was prepared to take the rap for the shoplifting, though it had been her sister's idea.
尽管在商店偷东西是她妹妹的主意,可她甘愿为此受罚。