observe the trend是什么意思 observe the trend怎么读
observe the trend的用法和样例
- First, there is an observational trend, represented by the Ionian physicists and Democritus, which proposed specific substances operating in our environment as the basis of life.
第一个是由爱奥尼亚物理学家和德谟克利特提出的观察倾向，它提出我们环境中存在的特别物质是生命的根本。
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