They bring into proximity an amino acid so that instead of forming a new polymer of a nucleic acid, a polymer of an amino acids is formed.

同时它所携带氨基酸相互邻接,从而形成了一个氨基酸聚合物,而非核酸聚合物

耶鲁公开课 - 生物医学工程探索课程节选

This month the site began cranking out the first batches of the polymer, called polylactic acid, or PLA, ready to be used in everything from clothing to carpets to the crinkly, thin films used to wrap candy and compact discs.

FORBES: Shucking Petroleum

It acts as an additional buffer to prevent the acidic polymer on the outside and stomach acid from reacting with the drug on the inside.

FORBES: Hard to Swallow