v .
to reproduce ; to multiply ; to spread or disseminate 번식하다 ; 증식시키다 ; 확장하거나 퍼뜨리다

• It shocked the nation when Tom gave up his career in professional basketball and devoted his life to _____ing tree fungi.
  탐이 프로농구 선수 생활을 그만두고 균류 재배에 일생을 바치겠다고 했을 때, 온 국민이 충격을 받았다.
• The Cold Sun Society is dedicated to _____ing the theory that the sun is a huge iceball, and its members wear winter coats all year long to protect them from icy blasts of sunlight.
• Because there are so many endangered plants nowadays, many gardeners have become interested in the _____ion of rare seeds, in order to keep old strains from disappearing.
  오늘날 멸종 위기에 처한 식물들이 아주 많기 때문에, 오래된 혈통이 사라지지 않도록 하기 위해서 원예가들은 희귀한 종자의 번식에 많은 관심을 갖게 되었다.