难以

The competitive power theory is different from classical economics theory, what it studied is the difference between individuals.

而核心竞争力是蕴涵在竞争力体系之中的，它没有固定的模式和表现形式，它只有三个特征：明显的竞争优势、扩展应用的潜力、难以模仿。

If you don't clear the decks and review all the elements in your life now, you won't be able to begin your new cycle with as much clean energy as you would if you did take the time to delete any elements in your life that are holding you back.

如果你不好好准备行动、重新审视你生活中的每一个要素的话，你就难以带着充足、纯净的能量去开始一个新的阶段，你需要抽出时间，把生活中阻止你前进的要素一一剔除。

As for their weaker bioactivity, their effects are not very stable and can not improve climacteric symptom effectively.

但是植物雌激素的生物活性相对较弱，疗效不稳定，难以有效改善更年期症状。

At that time people would starve if food was difficult to find,especially during the clod winter months .

在那个时代，如果食物难以找到，特别是在寒冷的冬月，人们就会挨饿。

Do not use greasy or heavy cosmetics that clog your skin and are difficult to wash away.

不要用油腻或重化妆品木屐，你的皮肤都难以洗去。

Neurologic examination revealed motor strength deficiency in all her extremities, with extensor reflexes, clonus, and bilateral hyper-reflexiveness.

MRI发现C1-C3水平脊髓存在难以确定的增强扫描同质且呈分叶状的偏心性包块。

He was allowed to touch Aya and seeing her tiny fingers close in on his was just indescribable.

他被允许触摸阿雅，看到她的小指头在他手上闭在一起，是难以描述的。

Geometric simplification is thus hard to apply when the visual appearance of an object depends on resolving the ordering and mutual occlusion of even very close-by surfaces, potentially with different shading properties.

几何简化因此是难以用于当一个对象的视觉效果取决于解决的顺序与十分靠近表面的相互遮挡，以及不同的着色属性的简化。

However, magnesium alloys have poor formability due to the hexagonal close-packed crystal structure.

但是，镁合金大多具有密排六方结构，传统上一直被认为是一种难以塑性变形、压力加工成形性能差的金属材料。

I_for every bounded closed domain in lane.Then we in- troduce the conception of F-homeomorphism for any two pictures in plane,and apply this conception to image recogni- tion.

从数学方法上看，现有图形识别方法多半是采用分析和概率相结合的方法，而描述图形本质特征的拓扑不变量却难以有效应用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷