petro-
petro-
comb form 构词成分
1 of petrol 石油的: petrochemical.
2 of rocks 岩石的: petrology.
牛津英汉双解词典
edrTRBnvbvbfdvEzudIdQg1m88q5imAx0fJs98kZOqu6gcmlb31bzg
0b702934eaa30e87a739da4aadfa8ea2
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