いかに
how; in what way
How to deal with environmental pollution is a serious matter.
・likeness
・like
・such as
・as if
・better
・best
・equal
・what
いかにも
indeed;really;truly;just (like)
how (much);to what extent
very;extremely;totally;terribly
however (much);no matter how
absolutely;certainly;for sure
hey;oi
いかにして
how;in what way