Based on such background, the thesis firstly introduces the aim and significance of choosing the title, and then it concludes the research situations all over the world.

基于这样的背景，本文首先介绍了文章选题的目的和意义，总结了国内外研究现状。

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The text has a specific formatting, such as font, font size, and spacing, so that it can sit on the background image and give an impression of a single image.

文本具有特定的格式，比如字体、字体大小和间隔，所以文本可以叠加在背景图像上，形成单一图像的效果。

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Here is a little background on why I splurged and bought such an expensive running tool.

这里有些我为什么要买这个如此昂贵的跑步手表。

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There are signs, though, that the NRA is growing out of touch with modern Americans and even with its own members who, according to surveys, now tend to support restrictions such as mandatory background checks on buyers of weapons at gun shows.

ECONOMIST: Despite legislative victories, the NRA is under pressure

Proposition F wouldn't limit the number of pot shops but would put stringent controls such as audits and background checks on employees while also raising taxes.

NPR: Garcetti Holds Slim Lead As LA Picks New Mayor

Details on how a man with no art background made such a dramatic but successful transition are scarce in his book.

NPR: 'I Love Mysteries,' Says Man Claiming Hidden Gold