循环使用 xún huán shǐ yòng

DEFINITIONS

  1. recycle
  2. to use in cyclic order

CHARACTERS

循 xún obey, comply with, follow
环 huán jade ring or bracelet; ring
使 shǐ cause, send on a mission, order; envoy, messenger, ambassador
用 yòng use, employ, apply, operate; use