Zhè xiàng gōngzuò yuǎn fēi tā yīgè rén néng wánchéng de.
This task is far beyond what one person can accomplish alone.
Tips
grammar
远非 + adjective/predicate is a formal way to say something falls far short of a given description. More emphatic than 不是 (not) or 并非 (not really). Common in written Chinese.
