苦苦思考

I spent days agonising over whether to take the job or not.

我用了好些天苦苦思考是否接受这份工作。

I then spent days agonising over what to say.

活动下周才开始，因此我又足够的时间来苦苦思考我应该说些什么。

I spent days agonizing over whether to take the job or not.

我用了好些天苦苦思考是否接受这份工作。

She pondered bitterly upon the meaning of life.

她苦苦地思考生活的意义。

What do historians puzzle over?

什么是历史学家苦苦思考的？

Senior officials puzzle over why it is that Australia is so liked in China.

高级领导人苦苦思考，为什么澳大利亚是如此喜爱中国

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。