这位政界幕后操盘手总能搞定各种棘手的协议。

The political ___fixer always gets tricky deals done behind the scenes.

在冲洗照片时，确保将底片放入定影液中足够长的时间。

When developing photos, make sure to leave the negatives in the ___fixer long enough.

我们需要找个修理工来修理办公室的空调。

We need to call a ___fixer to repair the office air conditioner.