尤其是

尤其是	yóu qí shì	especially / most of all / above all / in particular
尤	Yóu	surname You
尤	yóu	outstanding / particularly, especially / a fault / to express discontentment against
尤其	yóu qí	especially; particularly
其	qí	his / her / its / their / that / such / it (refers to sth preceding it)
是	shì	to be (followed by substantives only) / correct; right; true / (respectful acknowledgement of a command) very well / (adverb for emphatic assertion)
是	shì	variant of 是