森林生态系统退化的要害因素是林业开发强度。
The crucial factor that silvan ecosystem degrades is forestry development intensity.
一个良好的人际关系，是炒作成功的要害因素。
A good human relationship, it is the crucial factor that acclaims a success.
和脸一样，手的特征也是算命师的工具，其中的要害因素是“掌丘”，也就是手掌隆起的部分，以及介于之间的低陷部份的大小和外形。
Like the face, the features of the hand are tools of the fortune-teller. The key factors are the size and shape of the mounts, or raised parts of the palm, and the valleys between them.
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