到现在

The most common and most widely studied methods of all analytical approximation methods for nonlinear differential equations are the perturbation methods.

非线性振动由于其振动方程的特点，到现在还没有通用的解析求解方法，只能根据系统的特点采用一些特殊的方法来求解。

"He's always been an underdog his whole life," his buddy Andrews said.

"他的一生到现在经常会成为一个失败者，"他的伙伴安德鲁斯说。

Grown from $19 to $19,011, or at a rate of 23.8% compounded annually.

由当初的19元成长到现在的19，011美元，年复合成长率约为23.8%。

Value has grown from $19 to $50,498, a rate of 22.2% compounded annually.

19元成长到现在的50，498美元，年复合成长率约为22.2%*。

Natural hirudin is the most powerful natural anticoagulant in the world until now.

天然水蛭素是目前功能最强大的天然抗凝血剂，在世界上到现在。

Some different specific arithmetic were presented in recent 20 yrs. But all these arithmetic are applicable to point spread function which the parameters are known.

目前，对于不同原因造成的图像变质的复原有了深入的研究，到现在已经提出了不同的具体算法，但这些方法适用于点扩展函数并已知其参数的情况。

USA has failed to artificial satellite now number?

美国到现在卫星失败了多少？

As far as my own country is concerned,......

到现在为止我还是喜欢。。。。

To me, study is an as happy as a lark affair, I was born in a small county city, making reference to now to return to me here unwell should, inharmonious ever over here, but though I so, and then have what change?

对我来说，读书是件很快乐的事情，我出生在一个小县城，这里对我来说到现在还不适应，曾经于这里格格不入，但是尽管我这样，又有什么改变吗？

I haven't finished as much as I planned by now!

到现在为止，我还没有完成今天预定的计划！

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。