Well, then you might have to throw in... something extra?

那你们恐怕就得多给点什么了？

" To throw (throw) in" something is to add something without charging something extra to the person.

” “投（掷）入” 是加东西，不向人收取额外的东西。

Then throw in something like cheap rent or free healthcare  and sit back to watch the innovation happen.

然后投入诸如廉价租金或免费医疗保健之类的东西，然后坐下来观看创新的发生。

You reach a general agreement - thousand dollars is good for me - and then you say, oh, one more thing, one more thing, asking the other side to throw in something small.

你们达成了一个普遍的协议——一千美元对我来说有好处——然后你说，哦，多一件事，多一件事，要求对方投入一些小东西。