格格不入
not talk the same language.
go against the grain with one.
out of keeping with.
a square peg in a round hole.
eg：when discussing philosophy, we are not talking the same language.
中英俚语俗语来源：礼记·学记：“发然后禁，则杆格而不胜，时过然后学，则勤苦而难成。”
同义词：话不投机半句多 it' s ill talking between a full man and a fasting.
反义词：气味相投 8irds of a feather flock together.
