单词	pre-contractual obligation
释义	pre-contractual obligation 先合同义务
随便看	geochemical differentiation geochemical disease geo-chemical disease geochemical dispersion geochemical dispersion pattern geochemical distribution geochemical division geochemical drainage reconnaissance geochemical drainage survey geochemical dynamics geochemical ecology geochemical effect in coal Geochemical eharaeteristie geochemical elements geochemical endemia geochemical engineering geochemical enrichment geochemical environment Geochemical evaluation geochemical evolution Geochemical Experiment and analysis geochemical experiments geochemical exploration geochemical exploration analysis geochemical exploration anomaly