1. 形容詞
   觀察的, 根據觀察的
   觀測的, 根據觀測的
   

   同義字詞
   empirical,empiric,existential,experiential,experimental,objective
   

例句

1. His work was purely observational .
2. Unlike in RCTs, they are observational .
3. This is an issue for all observational data.
4. The observational data simply did not exist.
5. Its the same with other OBSERVATIONAL science .
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