He has some unfinished business to deal with.
他還要處理一些尚未了結的事務。
I'll say this much for him ─ he never leaves a piece of work unfinished.
我要為他說句公道話——他從不半途而廢。
She has an undoubted talent as an organizer.
她的確有組織才能。
His sincerity is undoubted.
他的誠意是無容置疑的。
It is undoubted the ability of IT rebuilding traditional industry.
IT作為高科技的代表，其對傳統產業的改造能力是毋容置疑的。