photosynthesis 例句：relating to or using or formed by photosynthesis.属于光合作用，运用光合作用，或由光合作用形成。Of or relating to the part of the oceanic zone into which enough sunlight enters for photosynthesis to take place.光合作用带的与能够获得足够阳光以发生光合作用的广大区域有关的the aphotic depths of the sea where no photosynthesis occurs.海洋中没有光合作用发生的漆黑深处。If it were not for photosynthesis, the world would starve to death.要不是由于光合作用，世人就要饿死。Scientists know only a little, so far, about photosynthesis.到目前为止，关于光合作用问题科学家知道还不算多。
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