单词	ortho ester
释义	ortho ester noun : an ester of an ortho acid especially : an ester RC(OR′)3 (as orthoformic ester) of an ortho-carboxylic acid Word History Etymology ortho entry 1
随便看	riversides Riverton riverward riverwards riverwash riverway riverways riverweed riverweed family riverweeds rivery rives rivet rivet buster rivet forge rivet hearth rivet heater rivet hole rivet knob rivet line rivet pitch rivet set rivet snap rivet weld rivet wheat

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