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What the Darwinian perspective neglects is a plausible explanation for the origin of fitness.

达尔文主义的观点所忽视的是对适合度的起源作出了似是而非的解释。

Do you know that the origin of China can date back to 5000 years ago.

你知道么？中国至少有五千年的历史，是非常悠久的。

The morphology, occurrence and components of dawsonite were described, and the paragenetic sequence of sandstone and origin of CO2 forming dawsonite were investigated by polarization microscope, scanning electron microscope, Xray diffraction and MAT251 stable isotope mass spectrometer.

利用偏光显微镜、扫描电镜、X射线衍射分析仪和MAT251稳定同位素质谱仪，详细描述了片钠铝石的形貌、产状和成分，确定了含片钠铝石砂岩的成岩共生序列和形成片钠铝石的CO2的成因。

However, dawsonite can be acted as trace mineral suggesting migration or accumulation of fluids with abundant carbon dioxide to whatever origin it belongs. In geological background, occurrence or enrichment of dawsonite indicates that migration or accumulation of carbon dioxide with large scale has happened.

然而，不论源于有机成因CO2气还是无机成因CO2气，片钠铝石均可作为富CO2流体运移或聚集的"示踪矿物"，地质过程中片钠铝石的出现或富集表明该区曾存在大量CO2运移或聚集。

With a very simple way to discussion of the decibel unit of origin, and with other units of the conversion relationships.

用非常简单明了的方式论述了分贝单位来历，及与其他单位的换算关系。

From the Chinese Classical Math ,this paper discusses the origin and the consideration of numbers, especially we point out that the decimal and place value system originates from China ,not from India.

本文从中算学角度，论述了数的起源与认识，尤其指出并论证了十进位值制起源于中国而不是印度。

The decohesion of the weak interface between particle and matrix may be considered as the origin of toughening.

认为颗粒与基体间弱界面的解聚是熔融石英颗粒复合材料韧化的原因。

There are two disputing theories about the origin of cancer, that is, cancer arises from dedifferentiation of somatic cells or maturation of stem cells. Recent discoveries demonstrate that cancer cell proliferation is driven by cancer stem cells.

肿瘤的起源，即肿瘤的去分化起源和肿瘤的干细胞起源一直是有争议的，而随着干细胞研究的深入，越来越多的实验结果证实肿瘤起源于干细胞的观点。

There are two hypotheses to explain the origin of liver cancer stem cells: the dedifferentiation of mature hepatocytes and the maturation arrest of liver stem cells.

通过实验，研究人员对于肝癌干细胞的来源提出了两个假说：成熟肝细胞的去分化与肝干细胞的"成熟受阻"。

A message of unknown origin from deep space...

神秘深空传来的消息。。。

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