1、转念一想
...second best 排第二on second thought 转念一想，再三考虑之后get a second opinion 听取第二方意见，其他人的意见 ...
2、仔细考虑
... on occasion 偶尔 on second thought 仔细考虑 on the decline 在下降 ...
3、重新考虑
... → thought 想法，思考 on second thought 重新考虑 I made my decision on second thought. 我重新考虑之后做了决定。 ...
4、经重新考虑
... on schedule 按预定时间,准时 on second thought 转念一想;经重新考虑 on the tip of one's tongue 就在嘴边上,一时想不起来,记忆有点模糊 ...
on n second thought进一步考虑
on the second thought重新考虑看看
But On Second Thought但仔细一想
On second thought forget it再仔细想想别太在意了
Second Thought on Mathematics Truth数学真理的再思考
a second thought on literature文学再思考