Host selling involves blending advertisements with regular programming in a way that makes it difficult to distinguish one from the other.
“销售主持人”这种形式将广告和常规的节目安排以某种方式掺杂在一起，使两者难以被区分开。
Human cases of H5N1 may be difficult to distinguish from other illnesses.
H5N1型人类病例很难与其他疾病相区别。
Simple cysts are difficult to distinguish from arachnoid cyst or epidermoid.
单纯的囊肿较难与蛛网膜囊肿和表皮样囊肿相鉴别。
In severe cases it may be difficult to distinguish a sprain from a fracture.
在严重的情况下，可能难以区分扭伤，从骨折。
It is difficult to distinguish between inflammatory and metastatic lymph nodes.
鉴别炎性还是转移性淋巴结肿大是困难的。
Its difficult to distinguish them distinctly only by clinical presentation and pathologic features.
临床上，尤其在病理上，明确鉴别两者有时很困难。
At this age children have a rich imagination, but difficult to distinguish between fantasy and Reality.
在这个年龄段的孩子有丰富的想象力，但难以区分幻想与现实。
The artificial rockery showing no artificial trace, is difficult to distinguish between true and false.
而人为的假山不露人工的痕迹，令人真假难辨。
It is sometimes difficult to distinguish between the element of envy itself and the defences against it.
有时候很难区分哪些是嫉羡的防御，哪些是嫉羡本身。
In much of the Delta it has now become difficult to distinguish between politicians, gangsters and insurgents.
在很多富油三角洲地区，现在已经很难区分政客，歹徒和叛军了。
It WAS not difficult to distinguish between George Bush's farewell visit to Europe this week and a victory lap.
乔治·布什本周在欧洲的告别之旅和运动员获胜后绕场一周还是有区别的，这一点不难看出。
The nonsingular H-matrix can find its application in many fields, yet quite difficult to distinguish in practice.
非奇异H矩阵在许多领域都发挥着重要作用，但在实用中判别H矩阵却是困难的。
Started his network of sea, the often heard friends mention network complexity, personnel difficult to distinguish.
初涉网海时，常听朋友提起网络复杂，人事难辨。
Due to the resolution limit of TM imagery, it is difficult to distinguish the forest variety in vertical structure.
由于TM卫星影像分辨率的限制，很难分别出林分垂直结构的差异。
However, this is not always the case, and it is sometimes difficult to distinguish between subsystems and localities.
然而这并不是一成不变的，而且有时也很难区分出子系统和位置。
Therefore, it is very difficult to distinguish oil with water layer and to evaluate oil layer by using logging data.
采用人工神经网络测井识别技术识别油层并进行储层物性及含油性的解释。
A couple of times I couldn't see them, because it was difficult to distinguish them from the ones of the other teams.
有几次我看不到车队给我的告示板，因为要把他们和别的车队的告示板区分开来是在很困难。
Sometimes it is difficult to distinguish between application and business logic and connectivity and integration logic.
有时很难在应用程序和业务逻辑与连接和集成逻辑之间进行区分。
Vietcong guerrillas were often difficult to distinguish from civilians and moved effectively in the difficult terrain.
越共游击队经常很难与平民区分开来，并且在复杂的地形中行动迅捷。
In the flood of media attention that biofuels have received, it is difficult to distinguish the facts from the fanfare.
由于生物能源受到媒体的广泛关注，良莠不齐的报道及部分被文字夸张的信息成为了人们认识事实的屏障。
In practice, it may be quite difficult to distinguish stored charge effects (in insulators) from piezoelectric effects.
在实际工作中，区分储存电荷效应(在绝缘体中)和压电效应可能是相当困难的。
The presentation as pain, fever, and positive blood culture will make it more difficult to distinguish from spinal infection.
当患者表现为疼痛、发烧、血培养阳性时，与脊柱感染相鉴别就更为困难了。
It was difficult to distinguish them from hemangioma, pure cyst, branchial cleft cyst, sebaceous gland cyst and dermoid cyst.
常与血管瘤、单纯囊肿、鳃裂囊肿、皮脂腺囊肿、皮样囊肿难于鉴别。
It was difficult to distinguish oogonium from spermatogonium according to the shape and size of gonium under light microscope.
在光镜下难以根据性原细胞的形态和大小区分卵原细胞和精原细胞。
Besides, it is difficult to distinguish whether arbitration from an oral agreement is a common law or customary law arbitration.
此外，在实践中，很难区分一个产生于口头仲裁协议的仲裁是习惯法仲裁还是普通法仲裁。
Life is complicated, like a cocktail, colored bright-colored the missing clue, there are many difficult to distinguish the taste.
生活是复杂的，就象一杯鸡尾酒，五色斑斓的找不到头绪，有许多难以辨别的滋味。
Since disturbed sleep is common in the elderly, it can be difficult to distinguish between a normal aging process and a disease state.
正是因为睡眠问题在老年人中很常见，所以很难分辨出到底是正常现象还是疾病。
If both messages concern the same class and are thus assigned the same category, it will be difficult to distinguish them in the log output.
如果这两条消息所关注的是同一个类，这样就会被分配给相同的类别，这将很难在日志输出结果中对其进行区分。
The Clinical Manifestations of polymyositis and dermatomyositis vary greatly. It is more difficult to distinguish the mild cases from others.
多发性肌炎、皮肌炎的临床表现多样化，尤其对于轻型患者鉴别诊断更加困难。
The Clinical Manifestations of polymyositis and dermatomyositis vary greatly. It is more difficult to distinguish the mild cases from others.
多发性肌炎、皮肌炎的临床表现多样化，尤其对于轻型患者鉴别诊断更加困难。
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