If you do not have to rush to take vitamin a supplements, excessive intake of vitamin a, which the body does not discharge it, will produce toxic accumulation.

您不要急于服用维生素a补充药物，如果摄入过多维生素a，机体无法将其排出，会积累产生毒性。

youdao

It is forbidden to construct new project in residential areas that discharge waste gas or dust containing toxic matters.

译：禁止在居民区新建排放含有毒物质的废气和粉尘的项目。

youdao

The discharge of any water-based mud, non-toxic compound mud or drilling breaks into the sea must comply with the relevant provisions of the State.

水基泥浆和无毒复合泥浆及钻屑的排放，必须符合国家有关规定。

youdao

The sea is enclosed and a discharge of toxic waste might cause devastating harm to the wildlife.

ECONOMIST: Oil and the seals of Kazakhstan

Over 1, 000 enterprises were closed down during the past two years for illegal discharge of toxic heavy metals in China, according to the government.

FORBES: China Getting Tougher On Polluters