在我们会晤期间，他提及了合作的意愿。
During our meeting, he indicated his willingness to cooperate.
在会谈期间，他们讨论了与世卫组织流感合作中心网络交换流感病毒的问题。
During the meeting, they discussed the sharing of influenza viruses with the WHO Network of Collaborating Centres for Influenza.
在光合作用期间，各种叶子不得不产生叶绿素来捕获太阳能，而就是这种叶绿素给了各种叶子绿色。
During photosynthesis, leaves have to produce chlorophyll to capture the energy from the sun, and it is this chlorophyll that gives them their green colour.
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