你需要一定量的光线进入你的相机，但是在手动模式之下，你得从你想要的其他效果出发来决定这个量的多少。
You need a certain amount of light to get into the camera, but in manual mode you choose how to get that amount based on the other things you want for the shot.
这类模型可以定量分析组织内部(但不局限于组织范围)的各种维度上的某些突出方面的相对增长量。
Such models quantify the relative growth of certain salient aspects within various dimensions typically within, but not limited to organizational boundaries.
酒店预订量占在线旅行社美国国内预定量的37%，相当于在线旅行社全球预定量的30%多。
Hotels contribute to 37% of all U.S. domestic bookings via the OTAs, which is a little over 30% of the ota total gross booking volume.
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