I buy you lunch and you fix my computer. Is that a fair exchange ?

我请你吃午饭，你给我修计算机，这算是公平交易吧？

《牛津词典》

Someone should buy it and fix it up, reckon the neighbours.

邻居们认为，应该会有人买了再装修呀。

youdao

Every time he opened his mouth this summer he said we need to fix the housing market and buy mortgage-backed securities.

今年夏天他每一次张嘴他都会说我们需要集中在房地产市场并且收购抵押支持证券。

youdao

According to the FIX Protocol Website, 75 percent of buy-side and 80 percent of sell-side financial services firms use FIX for electronic trading, with both types of organizations planning to expand FIX, according to a survey taken by TowerGroup.

FORBES: Hacking Capitalism

Some may find it advantageous to buy new data-processing systems rather than to fix their existing ones.

ECONOMIST: Financial technology: Beware the millennium | The

So the ECB can buy time, important time, but bond-buying alone will not fix the crisis.

BBC: Eurozone crisis: Buying time by buying bonds