Nocuousness substances的用法和樣例：
例句
- All dairy products must be tested Pipi melamine, and other toxic and harmful substances.
所有的乳制品，必須批批檢驗三聚氰胺等有毒有害物質(zhì)。 - It is prohibited to mine the coal with toxic or harmful substances, such as radioactive and arsenic, that exceed the prescribed limits.
禁止開(kāi)采含放射性和砷等有毒有害物質(zhì)超過(guò)規定標準的煤炭。
