实质上的英文：
virtually
essentially

参考例句：

Such legislation is virtually per se unconstitutional
该立法实质上其本身就是违宪的。

In essence, resistance of avant garde art is just a game.
先锋艺术的反抗实质上只是一种游戏。

It was a virtual promise.
那是实质上的承诺。

It all comes down to poop.
这实质上指的是大便。

He was the virtual leader of the movement.
他是该运动实质上的领袖。

A formal note is essentially a formal personal letter.
正式照会实质上是正式的个人函件。

a request tantamount to a demand.
一个实质上与需求无异的请求

The law that codifies evil is the essence of lawlessness．
肯定坏事的法律实质上等于无法。

A MAN is actually a LAN of large size .
一个城域网(MAN)实质上是规模较大的局域网。

His opinion accords substantially with mine.
他的意见和我的意见实质上是一致的。

virtually是什么意思：
adv. 事实上；几乎；模拟

Virtual entity means virtual combo.
虚拟企业指的是成立虚拟联合体。

The glass ravelled virtually into powder.
玻璃几乎碎成了粉末。

These children were in a state of virtual neglect.
这些孩子实际上处于无人照管的状态。

It is virtually impossible to predict the future accurately.
精确预言未来的事实际上是办不到的.

So it is virtually risk-free for you .
所以，事实上对您而言，是完全没有风险的。

essentially是什么意思：
adv. 本质上，根本上；本来

They are essentially in a triunity.
他们本质上是三位一体的。

Protein is essential to life.
蛋白质是生命必不可少的。

Coal is an essentially nonrenewable resource.
煤是不可再生资源。

There is distinction of the basic essentials and the periphery
事有本末

Toughness is its essential feature.
韧性是其必备特征。