1·Like a family tree that you might use to trace back through generations of ancestors, only it's showing a family of genetically related languages instead of people.
就像你可以追溯祖先的家谱一样，它只是在显示与遗传相关的语言，而不是人类。
2·Rather than merely a sign, it is the root from which we can trace back to our ancestor, the tie that helps bind us to other members of the same clan, the dignity most people hope to live for.
它不仅仅是一种标志，更是我们可以追溯到祖先的根源，是将我们与同族其他成员联系在一起的纽带，是大多数人希望为之而活的尊严。
3·Aggregating such a trace back yields a quantified call-chain.
通过聚集这种反向跟踪，可以产生一个量化的调用链。
4·This way gem users can trace back a gem to a trusted source.
这样gem用户可以溯及一个gem至可信的源。
5·This is really a sad story. Did they trace back your luggage?
情况真是糟糕。他们找回你的行李了吗？
6·Tea houses in Hangzhou trace back to the Southern Song Dynasty (1127-1279).
杭州的茶馆历史可以追溯到南宋时期(1127 - 1279)。
7·For example, a stack-trace back could be derived easily from the trace.
例如，可以很容易地从跟踪得到stack - trace back。
8·It is also possible to trace back from lower to higher levels of abstractions.
从低层级到高层级的抽象也是可能的。
9·The first part is: Trace back to the source — different description in history.
第一部分：溯源——不同的历史描述。
10·Trace back and analyse the clinical data of 54 cases treated with the method above.
回顾性分析采用病灶清除植骨内固定术治疗的54例脊柱结核患者的临床资料。