As much as we're looking after them now and we're okay in the early stages, there is that feeling

of how much longer we can sustain that for.

尽管我们现在正在照顾他们，这是因为在早期阶段，我们还可以应付，很难说，我们可以维持多长时间。

as much as 是美国英语，意思等于 though（尽管；虽然），引导让步从句。

这里，much 是程度副词，表示 looking after 的程度。

与这些 We're looking after them now as much as we can/或 as possible and we're okay...，都没有关系。

举例详解如下：

1. Much as he likes the girl, he never wants to marry her. 

2. As much as he likes the girl, he never wants to marry her. 

句1）：我们知道，as 有时可以引导 “让步从句”。这时，必须具备两个条件：1. 从句跟主句必须有这层让步关系；2. 某些成分，如表语、程度状语等，需要置于as 之前。

句1）就具备了这两个条件。 Much as he likes the girl 是让步从句，much as = though。

我们再来看句2），它与句1）没有什么很大差别，就是多了一个as。其实，这是美国英语，美国人喜欢用两个 as，显得对称。而意思不变。as much as = though。

以上两句翻译如下：

【翻译】尽管他很喜欢这个女孩，但他从不想娶她。