The technology of cloning has shaken the age of natural multiplication of human beings and brought forth a series of social problems.

克隆技术的出现打破了人类靠自然繁衍规律支配的时代，给人类社会带来一系列社会问题。

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The technology of cloning and gene manipulation makes the construction of idealized offspring possible, but do we have the maturity for it?

复制技术和基因改造的科技让我们有可能创造出理想的子孙，但我们技术成熟了吗？

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But they are difficult to make and require the use of an embryo or cloning technology.

但是制造他们是很困难的，而且需要使用胚胎或者是克隆技术。

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In his State of the Union address, President George W. Bush advocated outlawing all use of cloning technology on human cells.

FORBES: Magazine Article

Many doctors, including some at the forefront of cloning technology, have expressed severe doubts about whether the techniques could ever ethically be used on humans.

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But scientists are keen to develop the cloning aspects of the technology because this would yield perfect match tissue that would not be rejected by the patient.

BBC: UK to 'approve therapeutic cloning'