讲解

【词形变化】

英英解释:

名词 chain:

1. a series of things depending on each other as if linked together

同义词：concatenation

2. (chemistry) a series of linked atoms (generally in an organic molecule)

同义词：chemical chain

3. a series of (usually metal) rings or links ***d into one another to make a flexible ligament
4. a number of similar establishments (stores or restaurants or banks or hotels or theaters) under one ownership
5. anything that acts as a restraint
6. a unit of length
7. British biochemist (born in Germany) who isolated and purified penicillin, which had been discovered in 1928 by Sir Alexander Fleming (1906-1979)

同义词：Ernst Boris Chain, Sir Ernst Boris Chain

8. a series of hills or mountains

同义词：range, mountain range, range of mountains, mountain chain, chain of mountains

9. a necklace made by a stringing objects together;

同义词：string, strand

动词 chain:

1. connect or arrange into a chain by linking
2. fasten or secure with chains

本刊例句：Electrophoresis of polymerase chain reaction showing that the 5-HTTLPR gene had three alleles.