VOA慢速英语:Blood Cancer Therapy Is Last Chance for Some

短语讲解：

1. “That’s what I think in the future may be most important for patients – that it’s a single treatment instead of many months of treatment.”

instead of （用…） 代替…， （是…）而不是…
例句：A spirit lamp burns spirits instead of oil.
酒精灯里点的不是油而是酒精。

2. But for other cancers, immunotherapy is considered a last resort.

but for 要不是
例句：But for the details of our itinerary, I am all to seek.
至于我们当时走的是怎样的详细路线，我此刻完全茫然了。