I was thinking I would just charge her one lump sum.

I was thinking I would just charge her one lump sum.
I was thinking I would just charge her one lump sum.

I was thinking I would just charge her one lump sum.
我刚才在考虑让她一次性付清

我在想我要让你一次付完费用
one lump sum一次付清

lump sum n.一次付的款额, 一次付清
我想我要让她一次付清（欠我的钱）

我刚才想让她一次性付清的。
lump sum是一次付清的意思