back-trace的意思|示意

Birds evolved from dinosaurs, but the origin of their feathers may trace back even deeper in time, to the common ancestor of dinosaurs and pterosaurs, like the fossil at left.

鸟类是从恐龙进化而来的，但羽毛的起源则要追溯到更为久远的上古时代，恐龙和翼手龙的共同祖先才是羽毛出现的源点，例如上图左边的这块化石。

To find the bug, we have to trace back through the flow of control to find out where the variable was assigned and determine whether doing so was incorrect.

为了发现错误，我们必须通过控制流跟踪，以发现变量在哪里被赋值，并确定是否这么做是不正确的。

Cluck and confess are like warn and die respectively but provide a stack back trace from the point where the error was raised.

cluck和confess分别与warn和die类似，但提供了从产生错误处的栈回溯追踪。

At a pinch you might trace the point about names back to Plato.

必要时你可以追溯到柏拉图的名字。

How far back can you trace your family tree?

你的家谱可以追溯到多少代？

With these steps, you can display a back trace of the current running process and all processes using the magic key sequence.

遵循这些步骤，您便可以显示当前运行的进程和所有使用魔术键控顺序的进程的回溯跟踪。