NASA已经恢复发射发现号航天飞机的倒计时。
NASA has resumed the countdown for the launch of space shuttle Discovery.
简单的倒数计时器。开始返回、取消转义、暂停和恢复与空间的关键。
Simple countdown timer. Start with Return, cancel with Escape, pause and resume with Space key.
简单的倒数计时器。开始返回、取消转义、暂停和恢复与空间的关键。
Simple countdown timer. Start with Return, cancel with Escape, pause and resume with Space key.
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