Definition
Used to indicate a summary or the essence of a matter, often omitting specific details.
總而言之，簡而言之，概括來說
The long and the short of it is, we need a new business plan.
總而言之，我們需要一個新的商業計畫。
The long and the short of it is that he lost the contract because he missed the deadline.
簡而言之，他因為錯過截止日期而失去了合約。
The long and the short of it is that it's a very complicated situation.
概括來說，這是一個非常複雜的情況。