n. 拇指甲；极小的东西，简短的文字，简明的提要[略图]。 2.adj. 极小的，微型的；简短的(论文等)。
the nail of the thumb
Thumbnails are reduced-size versions of pictures, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words. In the age of digital images, visual search engines and image-organizing programs normally use thumbnails, as do most modern operating systems or desktop environments, such as Microsoft Windows, Mac OS X, KDE (Linux) and GNOME (Linux).
例句与用法
1.
Robert jordan held the gray-painted grenade in his hand, trying the bend of the cotter pin with his thumbnail . 罗伯特乔丹握着一颗漆成灰色的手榴弹，用大拇指甲试试开尾销是不是结实。
2.
Refresh the thumbnails for the current selection . . 刷新当前所选区域的缩略图。
3.
Displays thumbnails for items in the display pane 在显示窗格中显示项的缩略图。
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