常見例句用作名詞 (n.)For experimental purposes, scientists originally assumed that photoperiodism worked through photosynthesis.為了進(jìn)行實驗，科學(xué)家們最初曾經(jīng)設(shè)想，光周期現(xiàn)象可能是通過光合作用實現(xiàn)的。 返回 photoperiodism