九个层次表明人们可以做好每一件事。
将你一天的工作计划出层次，专注做好一件事。
在第一件事你需要做的是要记住描述的层次结构。
The very first thing you need to do is to remember the descriptor hierarchy.
找到相同或相似零件对象后，在某个类层次上重用以前的设计。
After finding the same or similar part object, we can reuse the part object.
忍受痛苦是一件容易上瘾的事情，某种层次上就像有药瘾。
Endure pain is an addictive thing, like a drug addiction on some level.
但是要过这第一个层次，也是件不同寻常的事。
However, that first layer could be difficult for some Westerners.
但是要过这第一个层次，也是件不同寻常的事。
However, that first layer could be difficult for some Westerners.
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