second thought

英 [ˈsekənd θɔːt]

美 [ˈsekənd θɔːt]

n. 深思熟虑;仔细的考虑; 怀疑;疑虑

Collins.1

柯林斯词典

N-SING 深思熟虑;仔细的考虑
If you do something withouta second thought, you do it without thinking about it carefully, usually because you do not have enough time or you do not care very much.
1. This murderous lunatic could kill them both without a second thought...
  这个杀人狂会不假思索地把他们两个都杀掉。
2. Roberto didn't give a second thought to borrowing $2,000 from him.
  罗伯托没有细想就从他那儿借了 2,000 美元。
N-PLURAL 怀疑;疑虑
If you havesecond thoughts abouta decision that you have made, you begin to doubt whether it was the best thing to do.
1. I had never had second thoughts about my decision to leave the company.
  我从未怀疑过自己当初离开公司的决定。
PHRASE 转念间，经过重新考虑后(突然改变主意)
You can sayon second thoughtsoron second thoughtwhen you suddenly change your mind about something that you are saying or something that you have decided to do.
1. 'Wait there!' Kathryn rose. 'No, on second thought, follow me.'
  “在那儿等着！”凯瑟琳站起身来，“不，我改主意了。跟我来。”

noun

thinking again about a choice previously made
1. he had second thoughts about his purchase
Synonym:reconsiderationafterthoughtrethink

Paul's mother was very angry at the intrusion, but on second thought she agreed.
保罗的母亲对这种打扰十分恼怒，但回头一想又同意了。
B: On second thought, I will have a cup.
仔细想过之后，我想我还是要一杯。
On second thought, let's not bother.
经重新考虑后，我们不打搅了。
She began to think she was wrong after a second thought.
经过重新考虑后，她开始认为她错了。
On second thought I should have said they, ve taken their dispute to new heights.
转念一想，我可以说他们之间的争执到了新的高度。
By the way, if it still will hire you, have a second thought about the company.
顺便说一下，如果它要继续雇用你，仔细考虑这个公司。
On second thought, she rejected his marriage proposal to finish college.
经过再次考虑之后，她拒绝了他的求婚，打算完成大学学业。
This murderous lunatic could kill them both without a second thought.
这个杀人狂会毫不犹豫地把他俩都杀了。
So he took a knife and, without a second thought.
所以他拿了把刀子，毫不犹豫的。
He have intended to go, but on second thought, he give up the idea.
他本来想去，但进一步考虑后，打消了这个念头。