As so often the case 和up until

向尊敬的曹老师请教。

1. As so often, the past holds the key to the future.

问题1: 老师，这个as so often是省略了is the case吗？即As so often is the case 是一个比较分句作比较状语，这个比较分句的空位作主语，空位为主语的内容。

2. Up until a few decades ago, our visions of the future were largely —though by no means uniformly—glowingly positive.

问题2: 这个up until和until有啥区别呢？up是强调until的吗？

1 是的，as so often 是 as is so often the case的省略形式。as分句的主语为空位。

2 up until在此 = up to = until, 意思没有区别。

曹荣禄 -

擅长：动词用法,句法问题 | 采纳率 82% | 回答于 2023-08-30 19:48

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