1、ENIGMA 2 elevated its line of inquiry to metaphysical heights.
《謎2》則把這種探索提升到了形而上學(xué)的高度。

2、This line of inquiry leads to a more advanced technique.
這些問(wèn)題引出了一種更高級(jí)的技術(shù)。

3、Second, it opens a new line of inquiry into why depression is becoming more common.
此外，這一結(jié)果還會(huì)引發(fā)新一輪調(diào)查——為什么憂郁癥越來(lái)越普遍。