单语范例（未经PONS编辑处理）
Fishermen have been said to use the milky, caustic sap from this tree to poison fish.
en.wikipedia.org This raw silk is cleansed with caustic soda, dyed in the requisite shades, the threads are carefully separated.
en.wikipedia.org These and other caustic remarks did not help his sales in the least.
en.wikipedia.org The seeds are said to be bitter, caustic and to cause sores on the tongue.
en.wikipedia.org The diaphragm prevents the reaction of the caustic soda with the chlorine.
en.wikipedia.org