domino effect (n.)
多米诺（骨牌）效应、连锁反应

例句：
The lack of raw material has a domino effect on suppliers, factories, wholesalers and finally the consumers¹.
由于原料缺乏所产生的多米诺效应影响到供应商、工厂、批发商、最后还影响到消费者。

a house of cards
不可靠的计划、空中楼阁

例句：
I'm afraid you've been building a house of cards; no one is going to help you in a scheme² like that.
恐怕你一直在考虑的计划是不可靠的空中楼阁，没人会帮助你去搞那样的一个计划。

It doesn't make any difference.
都一样。

对话：
A: Do you like apple pie or chocolate cake? 
B: Either will do. It doesn't make any difference to me.

A：你想要苹果派还是巧克力蛋糕？
B：都可以。我无所谓。