bottom line
noun
usu.in sing.
1- informal the final total of an account, balance sheet, or other financial document〈非正式〉账本底线, 盈亏底线：
the rise in turnover failed to add to the company's bottom line.
销售量是增加了, 但还是未能扭亏为盈。
1.1
- the ultimate criterion最终标准：
the bottom line is, does it work?
最后的标准是——它起不起作用？
1.2
- the underlying and most important factor根本因素：
the bottom line is I'm still married to Denny.
最根本的是, 我和丹尼仍然是夫妻。