题目内容：

So,once I had made a considered decision,I no longer ___ it.
A、dwelt on
B、 dwelt in
C、dwelt with
D、 dwelt at
为什么选A?请翻译句子

优质解答

所以,一旦我经过深思熟虑决定了一件事情,我就不会再去老想着它了（我就不会在考虑它了）.
dwell on(dwelt 是过去式和过去分词）
老是想着,详述
His mind dwelt on the sad events.
他老想着那些悲惨的事.
dwell in
住在(某地)
Britons dwelt in England before the Romans came.
在罗马人来到以前,布利顿人居住在英格兰.
保留,存在
A philosopher dwells in the realm of ideas.
哲学家停留在概念的王国里.
dwell at
住在(某地)
The family dwelt at Bath after the London season was over.
伦敦戏剧节过后,这一家人就住在巴斯.