国会和媒体就政府是否应该走后门的问题已经展开了多次辩论。

We've had plenty of debates in Congress and the media over whether the government should have a backdoor.

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因此，针对这一特点我们在各大商场展开多次促销活动，”霍斯拉解释说。

So we have developed in-store promotions around this, " Khosla explains.

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展开可能需要多次进行展开过程，才能展开所有收件人。

Expansion may require multiple trips through the expansion process to expand all recipients.

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