We have a very communicative approach to teaching languages.我们在语言教学中非常强调交际教学法。She has become a lot more tolerant and communicative.她变得宽容多了，也爱说话了。I don't find him very communicative.我发现他不太爱说话。...
The phosphate was deposited by the decay of marine microorganisms.海洋微生物腐烂后沉积形成磷酸盐。We make superphosphate by reacting rock phosphate with sulphuric acid.我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙.About two - thirds of the weight of phosphate...