。
She sometimes hesitates before answering.
Literal
She [topic-は] answer [before-前に] sometimes hesitates.
時として is a literary adverb meaning 'sometimes / at times' — more formal than 時々 or たまに. ためらう ('to hesitate') is a native Japanese word with a slightly literary feel. The ~前に pattern cleanly marks the temporal boundary: hesitation happens before the answering. The combination of 時として and ためらう gives this sentence a reflective, observational quality.