nitrate
noun /ˈnaɪtreɪt/
/ˈnaɪtreɪt/
[uncountable, countable] (chemistry- a compound containing nitrogen and oxygen. There are several different nitrates and they are used especially to make soil better for growing crops.
硝酸盐；硝态氮肥 - We need to cut nitrate levels in water.
我们需要降低水中的硝酸盐含量。
词源late 18th cent.: from French (from nitre, from Latin nitrum, from Greek nitron + -ate). - We need to cut nitrate levels in water.