化學物質的用法和樣例：
例句
-
這座工廠排出的化學物質改變了整個地區的生態。
Chemicals in the factory's sewage system have changed the ecology of the whole area. -
滅草劑用來摧毀或抑制植物，尤指雜草的生長的化學物質
A chemical substance used to destroy or inhibit the growth of plants, especially weeds. -
殺真菌劑殺死真菌或抑制其生長的化學物質
A chemical substance that destroys or inhibits the growth of fungi. -
氨是種化學物質。
Ammonia is a chemical substance.
