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However, as her father passed away in his prime, her aged mother and younger brother have been the only two people maintaining the fruit orchard with much difficulty in recent years.

不过由於她父亲英年早逝，这几年果园就只靠她老母亲与弟弟两人在维持著，十分辛苦。

In the first part, study 1 was designed to investigate the development of the science inquiry ability in the group of the primary and secondary School student, and how the task difficulty affects science inquiry. We used the self-directed, computer simulated inquiry task, namely pendulum and string task It required the subjects to find the factors that affected the swing frequency of the pendulum and the level of stretch of the string. To evaluate the ability of science inquiry, we analyzed subjects'experiment-design strategies, evidence-evaluation strategies, and results of inference.

实证研究分两部分，第一部分即研究一，采用计算机模拟的自我指导实验探究任务，任务内容为单摆实验和弹簧实验，要求被试自主探究影响单摆摆动频率和弹簧伸拉长度的因素，并以科学探究的全过程为研究对象，以被试探究中的实验设计策略水平、证据评价策略水平以及正确推论结果作为衡量科学探究的指标，系统探讨了小学高年级和初中学生科学探究的特点。

The quantity and quality of threatening pass determine whether the team can win the game; the threatening pass and scores took place in the middle of the attacking third most; the proper through pass increase the difficulty of the deffense of the opponent and creat more time and space for the attacking side; place kick (free-kicks in the up field and corners) is one of the important ways of threatening pass.

威胁性传球的数量和质量是球队取得比赛胜利最重要的保证；前场中路是各队发动威胁性传球和造成进球最多的场区；恰当合理的直接传球大大增加了防守的难度，为进攻创造了更多的时间和空间；定位球是本届世界杯赛传威胁球的重要方式之一，其中最主要的是前场任意球和角球。

He has difficulty in doing even this because he is so haughty; for although the plebeians know full well he has fought many battles and been wounded many times, they want him to expose his scars to them in person.

他由于太高傲而难于做到这一点，那是因为，庶民虽然完全明白他身经百战并且多次受伤，但却想叫他当面把身上的伤疤展露给他们看看。

The Place I was in, was a most delightful Cavity, or Grotto, of its kind, as could be expected, though perfectly dark; the Floor was dry and level, and had a sort of small lose Gravel upon it, so that there was no nauseous or venemous Creature to be seen, neither was there any damp, or wet, on the Sides or Roof: The only Difficulty in it was the Entrance, which however as it was a Place of Security, and such a Retreat as I wanted, I thought that was a Convenience; so that I was really rejoyc'd at the Discovery, and resolv'd without any Delay, to bring some of those Things which I was most anxious about, to this Place; particularly, I resolv'd to bring hither my Magazine of Powder, and all my spare Arms, viz.

虽然在洞里没有光线，但这却是一个令人赏心悦目的最美丽的洞穴。地上干燥平坦，表面是一层细碎的沙石，所以不会有令人厌恶的毒蛇爬虫。洞顶和四壁也十分干燥。这个洞穴唯一的缺点是入口太小，然而正是因为进出困难，才使它成为一个安全隐蔽的地方，而这也正是我千方百计寻求的庇护所。所以，这个缺点于我来说反而成了一个优点。我对自己的发现真是欣喜万分，决定立刻把我所最放心不下的一部分东西搬到洞里来，特别是我的火药库和多余的枪支，包括两支鸟枪和三支短枪。

In mild cases there may be no more effect than this, but more severe oedema can cause difficulty in breathing.

在温和的情况下，有可能没有更多的效果比这一点，但较严重的水肿可导致呼吸困难，。

Legal rights of obligees and obligors are not protected effectively,and people's courts have difficulty in trying bankruptcy cases accurately in time.

本文探讨我国破产法在破产申请方面的不足和对策，旨在使破产法对破产申请的规定更加完善，使之更适合中国国情。

A man and a woman who are in love and struggling in this way will have the added difficulty of being neurally "different"-- for the male and female brains think, act, behave and even love quite uniquely.

恋爱中的男女在进行如此挣扎时，由于男女之间思维方式和行为习惯迥异，甚至在表达爱情上也是大相径庭，故其性格及心理上的差异会更加突显，让两人在未来的爱情之路上更加困难重重。

In this system the motion controlling centers upon regulating the speed of wire feeding and movement of lead screw in each direction.Four motors separately drive the wire-feeding tape roll and the lead screw move respectively following their directions of X, Y, Z axis. If all the motors are controlled by 89C51 directly,it will rise great difficulty for software and hardware implementation. So the suggested solution is to combine the microcomputer with stepper motor driver and control of their motion.

在本系统中运动控制的关键即送丝与各丝杠移动的调节，由四个电机分别驱动X，Y，Z轴方向的丝杠行走以及送丝操作，运动控制部分如果用89C51直接驱动各电机则在软件和硬件实现上都比较困难的，所以选用单片机与步进电机驱动器结合起来控制它们的运动。

Unlike last year, the rain in the area announced a certain increase in the difficulty of this year's tracks.

与去年不同，该地区的雨水宣布在今年的赛道一定困难增加。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。