双语例句
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1.
How much of the subject really needs a sharp focus?
主体有多少部分需要合焦？
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2.
The two rivals also a sharp focus on the board, look!
而二位对手也是全神贯注地盯着棋盘，瞧！
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3.
Maintaining a sharp focus on the eyes is imperative, otherwise the image will fail.
一定要把焦点对准眼睛，否则照片就会失败。