英语语法分析

Thereupon the question insidiously became: What on earth does one live to do?

于是，那个问题在不知不觉中变成：人活着到底是为了什么？

This disease may develop insidiously, with fever as the only clinical manifestation .

这种病可能隐袭发生，仅有发热为其唯一的临床表现。

More significantly (and insidiously) in the lowered friction, less guidance, more likely to post garbage sense.

更重要的是（也是更危险的），在疏于指导的情况下，这会导致人们发布大量的垃圾信息。