此过程称为“边界扩展”，而且一直进行着。
This process is called "boundary extension," and it seems to be going on all the time.
自那时以来，有关克隆人的激烈争论一直进行着。
A fierce debate on human cloning has ever since been going on.
公司之间一直进行着激烈的竞争，以获得更大的市场份额。
There has always been intense competition between companies for bigger market shares.
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