a copious supply的用法和样例：
- EXAMPLE: Large companies need a copious supply of skilled workers to operate complex modern industries.
- However, what symbiosis provided was a copious supply of heritable variation from microorganisms, which was fine-tuned over a long period to produce the cell structure we see today.
- Every star is a copious source of neutrinos.
- He is possessed of a copious vocabulary.
- She was a copious writer.