她出现在一个进化时代的转折点，此时黑猩猩和人在他们各自的进化道路程上刚刚进入直立行走（爬行）阶段。
She lived at the dawn of a new era, when chimps and people began walking (or climbing) along their own evolutionary trails.
他相信美国在线和时代华纳的合并是上个周期的转折点。
The turning point of the last cycle, he believes, was the merger of AOL and Time Warner.
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