photosynthesis

光合作用英释中释nthe production by a green plant of special substances like sugar that it uses as food, caused by the action of sunlight on chlorophyll (= the green substance in leaves )

1 net photosynthesis,净光合作用；净光能合成

1 It has at least one gene necessary for photosynthesis—so far it’s the only animal known with this ability..它有至少一个基因是光合作用所必需的——到目前为止这是唯一被发现具有此项能力的动物。

2 The belt of vegetation that crosses Africa below the Sahara is very dark because most of the sunlight is absorbed by plants for photosynthesis..在撒哈拉沙漠下方，横贯非洲中部的植被带颜色非常深，因为植物由于光合作用吸收了大多数太阳光。

3 As the ocean warms, it becomes more stratified, with the warmer water remaining at the top where the organisms need to be in order to do photosynthesis..但是随着海水变暖，它的层次会更加分明，温度更高的海水会停留在表面，而这里正是生物体进行光合作用必需的地方。