It shows that the elapsed execution time for the query has improved dramatically, it now takes only 7 seconds to complete.

它显示查询的执行时间得到了显著改进，现在只花费了7秒。

youdao

Some interesting stats for you: the human short-term memory can only hold between 7-9 facts, and even those typically tend to decay after 30 seconds.

给你看一组有趣的数据：人类的短期记忆仅能支持7到9个事实，而就这几个事实可能在30秒以后也会从记忆中消失。

youdao

When it 7 springs up, a person loved and lost is found, if only for a few seconds.

记忆一旦涌现，已失去的挚爱之人就会出现在你面前，即便只有几秒钟。

youdao