Research findings increasingly show the power of food to treat or reverse diseases, but that does not mean that diet alone is always the solution, or that every illness can benefit substantially from dietary changes.
2018年12月四级真题（第一套）阅读 Section B
英语六级真题
The care was substantially provided by voluntary services, which worked together with local authorities as they long had with eligibility based on income.
2018年12月六级真题（第二套）听力 Section C
柯林斯高阶英汉双解学习词典释义
ADV-GRADED
非常地;巨大地
If something changes substantially or is substantially different, it changes a lot or is very different.
"I'm afraid the film was well over budget""painting the room white made it seem considerably (or substantially) larger""the house has fallen considerably in value""the price went up substantially"