nitrates 是 nitrate 的第三人称单数、复数nitrateKK [ˋnaɪˏtret] /ˈnaɪˌtɹeɪt/发音名词1硝酸盐、硝酸酯High nitrate levels in the river came from farm runoff.河川中硝酸盐含量偏高,是农地径流造成的。2硝酸盐肥料Farmers here spread nitrates on the fields each spring.这里的农民每年春天都会在田里施用硝酸盐肥料。动词1硝化、使硝化化学The compound is nitrated before being used in the next step.这个化合物要先经过硝化,才能进入下一个步骤。用这个字练口说→