bottom line
1、the final total of an account or balance sheet.
"the rise in turnover failed to add to the company's bottom line"
2、the fundamental and most important factor.
"the bottom line is I'm still married to Denny"
bottom line 就是我们常说的底线：做事的底线、生意的底线...
今天看老友记，Rachel对Ross说了一句：the bottom line is we can not stay married. 当时对bottom line 印象深刻。
没想到下午就对自己正在研究的事情设置了一条bottom line，进而让自己的思路变得清晰、决策上也能尽量符合预期。
要想让自己做事情更高效、更清晰，需要自己结合实际情况制定准确的bottom line。
