You can choose to take a high-key or low-key approach, and expose to emphasize certain areas of an image over others.
这可以是件好事，因为你可以选择高调拍摄或者低调拍摄，用曝光来强调一些部分并弱化其他部分。
2
High quality, low bit rate image compression method is one of the key technologies to develop downhole video logging instrument.
高清晰度，低比特率的图像压缩技术是研究井下电视的关键技术之一。
3
At present, low culture of tourism product, unclear target and image of marketing leads to not-strong key competence of tourism products and lagged development of urban tourism.