panacea

1.从例句中学到reason

have reason to do something 有理由

We have reason to believe that the goods were stolen.

2.学到的句型：

X（某个解决方案），though not a universal panacea for the problems  of Y,would be  a step in the right direction.

仿写：

场景：节食虽然不是解决肥胖的灵丹妙药，但是真的有用。

Going on a diet ，though not a universal panacea for the problems  of obesity,would be  a step in the right direction.