a lone assailant wielding a kitchen knife孤身一人、手持菜刀的袭击者

He could wield a paintbrush but he was no carpenter.他会用漆刷, 但他不是木匠。

It does not matter whose hand wielded the pen – the decision originated in Downing Street.由谁执笔无关紧要——决策者都还是唐宁街的政客们。

He wields little power at the company.他在公司没什么权力。