他们对这件事进行了一番认真的讨论之后，想出了一个万无一失的计划。

After they gave this matter a serious discussion, they came up with a plan that would work in every circumstance.

youdao

他们对这件事进行了一番认真的讨论之后，想出了一个万无一失的计划。

After they gave this matter a serious discussion, they came up with a plan that would work in every circumstance.

youdao