所以克拉克先生提出请慈善机构帮忙，成功之后，再向其付款。

So Mr Clarke proposes to ask charities to help with the work, and to pay for it only when it succeeds.

youdao

所以克拉克先生提出请慈善机构帮忙，成功之后，再向其付款。

So Mr Clarke proposes to ask charities to help with the work, and to pay for it only when it succeeds.

youdao