基本上，根本上
in reality
同义词： at heart / deep down / inside / in spite of appearance
实际上（等于at the bottom）
... at cost按成本 at bottom 实际上，根本上;基本上 at fault 有责任;有错误;有毛病 ...
... at stake 在危险中、在成败关头 at bottom 实际上、本质上 at short notice 一得到通知 ...
At Bottom(根本上), 此释义来源于网络辞典。
... temperamental adj.由气质导致的 at bottom现实上 alleviate vt.使便于接管，减缓我为什么而生 ...
实际上（等于at the bottom）
in fact / in practice / in reality / as it is / in the concrete
The two systems are, at bottom, conceptual models.
这两个系统实际上是概念模型。
"Universal history, the history of what man has accomplished in this world, is at bottom the History of the Great Men who have worked here," wrote the Victorian sage Thomas Carlyle.
维多利亚时代的圣人托马斯·卡莱尔写道：“通史，即人类在这个世界上取得的成就的历史，本质上就是在此努力过的伟人的历史。”
But what was June, 1848, at bottom?
但是，究其实，1848年六月到底是怎么回事？
"Now if you look at that bottom picture on your pages, you'll see that you can measure the length and the width of that spatter droplet,right?
VOA : special.2010.05.05
Thus, the dictum could be dared in the psychoanalytic school: at bottom, nobody believes in his own death.
在精神分析学院会有这种说法：,说到底，没人相信自己的死亡。
死亡课程节选 : 耶鲁公开课
so it's either, you're at the bottom of the spectrum and you're barely making it,
不管你是哪一个，都是在两个极端，你只能勉强度日，
SpeakingMax英语口语达人 : 生活费偏高
They have an opening at the bottom for the fire and a place on top to put a pot.
VOA : special.2010.02.01
Alina from China sent us this proverb: "He who would climb a ladder must begin at the bottom."
VOA : special.2009.03.01
This is at bottom a fight within Islam, not a fight between Islam and the West.
ECONOMIST: Much has been achieved, but things are now going badly
At bottom, the Massachusetts plan--and others like it--is more of a nudge than a clear-cut solution.
At bottom, most of my ambivalence about Augusta stems from the excess here the excess of perfection.