Carving is the most difficult part.

雕刻是最难的部分。

Tackle the most difficult task first.

先解决最困难的任务。

It was the most difficult one of all.

这是最困难的一个。

The teenage years from 13 to 19 were the most difficult time for me.

从13到19岁的少年时代对我来说是最困难的时期。

One of the most difficult conundrums for the experts.

对专家们来说最难的难题之一。

The Jupiter-Saturn cycle is now in sextile to its most difficult period.

木星-土星周期现在与其最困难时期成六十度角距。

I thought Audit is a subject which you can learn by rote at the beginning. But now, I realize I was wrong and I know why Audit and Accounting are the most difficult papers in CPA examination.

开始以为审计是一门死记硬背的学科，现在我认识到我错了，我知道为什么审计和会计一样被认为是注会考试中最难的两门了。

This has been one of the most difficult launches to a disaster that I have experienced but the delays at the airport are a sign that the world is reaching out to Haiti like never before.

这是我进入灾难现场最困难的一次，不过机场的拥堵正说明世界正在给予海地前所未有援助和关注。

Regardless of D2 diesel fuel oil or crude oil, as well as the most difficult orders, the amount of the transaction the greater the quantity of oil orders, the speed of attack is the most rapidly!

不管是燃料油还是D2柴油以及难度最大的原油定单，交易金额数量越大的石油定单，出击的速度也是最迅猛的！

This has been the mantra that has got us through the most difficult of all times because today we know that if the good times cannot last forever, the difficult times too will pass.

这句话伴我们度过了生命中所有最困难的时刻，因为如今我们知道若美好时光不能长久，艰难的时刻也终将过去。