1.be obsessed with 沉溺于······

例句：This is a story about a world obsessed with stuff.

这是个关于沉溺于物质的世界的故事。

2.be in crisis 处于岌岌可危的状态

例句：It's a story about a system in crisis.
这是个关于沉溺于物质的世界的故事。这是关于一个岌岌可危的系统的故事。

3.step in干涉，介入

例句：The good thing is that when we start to understand the system, we start to see lots of places to step in and turn these problems into solutions.
好消息是，当我们开始了解这个系统，我们开始看见许多能够干预之处，并将这些问题转变为解决方法。

4.It turned out to be 被证明是

例句：It turned out to be one of the dumbest moves in advertising history.
那最后变成广告史上最蠢的举动之一。