Images are generally already compressed, so compression should be limited to text output.

图片通常已经是压缩过的，因此压缩应仅限于文本输出。

youdao

PHP wasn't originally designed to be used with direct keyboard input or text output to the user.

PHP最初不是设计用于与用户直接的键盘输入或文本输出结合使用。

youdao

Unfortunately, the text output of that function doesn't specifically identify where in the XML document the error occurred.

遗憾的是，该函数的文本输出并不能明确指明在XML文档内错误发生之处。

youdao

When its image-recognition software can't interpret a passage of aged or faded text, it further distorts the image and serves it up as a CAPTCHA. That means the project not only produces an enormous output of digitized records for preservation purposes--it also filters text to find far more difficult words for computers to recognize.

FORBES: Magazine Article