汉英词典
Chinese-English Dictionary
MEANING OF 不知輕重
不知輕重 (不知轻重)
lit. not knowing what's important (idiom); no appreciation of the gravity of things / naive / doesn't know who's who / no sense of priorities
It doesn't matter if things don't understand
不懂得事情要紧不要紧。
bù/bú zhī () qīng zhòng/chóng
EXAMPLE SENTENCES

为什么许多东西都要限制18岁以上才可做是有道理的,对事情不知轻重的小孩,总是会让糟糕的事情发生。

There is a reason that the under 18s cannot do many things. A child's lack of judgment can sometimes cause terrible incidents to occur.