On the Oxford Dictionary of English, it says:
round
adv.
British
1. So as to rotate or cause rotation; with circular motion.
‘a plane circled round overhead’
‘she turned her glass round and round’
1.1 So as to cover or take in the whole area surrounding a particular centre.
‘she paused to glance round admiringly at the décor’
1.2 So as to reach everyone in a particular group or area.
‘he passed round a newspaper cutting’
https://en.oxforddictionaries.com/definition/round
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What does 'So as to' mean?
I think it doesn't mean 'in order to'.
PS - I also posted the same question https://www.usingenglish.com/forum/threads/253670-So-as-to-rotate-or-cause-rotation?p=1345741#post1345741, but all of your answers are unique.
It means something like "in a manner that brings about (the outcome that follows)". It has less sense of deliberate purpose than "in order to".
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It means something like "in a manner that brings about (the outcome that follows)". It has less sense of deliberate purpose than "in order to".