艰难的

I must mention that life in a tank without the tarpaulin was hard.

必须指出，在坦克里生活，没有防水帆布是很艰难的。

It's a hard war against terrorism.

这是一场艰难的反恐怖主义战争。

It was a tough time, but thankfully I'm out of it.

那是一段艰难的时期，但是很庆幸，我走了出来。

But let me tell you it is not easy to win the world cup!

但是我要告诉你赢得世界杯是很艰难的！

The sharp edge of a razor is difficult to pass over, thus the wise say the path to salvation is hard.

这便为小说整体定了基调--现代人寻求刀锋般逼窄艰难的灵魂救赎。

Mobile phone is very difficult to pick up a hair of the information you give.

拿起手机很艰难的发了一条信息给你。

Are going to have a hard time understanding.

一段很艰难的时间来适应

We're going to have a hard enough time coming to agreement on what this package will look like.

我们将经历相当艰难的讨论过程才能就经济刺激计划达成一致。

Mr Robinson has had a torrid time of late.

罗宾逊先生度过了一段艰难的时期。

I just thought it would be a tough field to break into, so I became an actor instead.

我只是想，那将是一个艰难的领域进入，所以我成为一名演员代替。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。