He was driving recklessly on the highway and nearly caused an accident.
他在高速公路上鲁莽驾驶,差点造成事故。
She had recklessly invested her entire savings into a venture she barely understood, ignoring the warnings of her financial advisor.
她不顾财务顾问的警告,鲁莽地把全部积蓄投入了一个她几乎不了解的项目。
在F·斯科特·菲茨杰拉德的《了不起的盖茨比》(The Great Gatsby)中,黛西和汤姆被描述为行事鲁莽的人——"They were careless people... they smashed up things and creatures and then retreated back into their money or their vast carelessness"——与 recklessly 的含义高度相关。