Portrait mode is optional.

竖屏模式是可选的。

youdao

This makes the text barely readable when the phone is in landscape mode, and microscopic when it's in portrait mode.

这使文本在手机的景色模式下不能读取，并且在肖像模式下会变得很小。

youdao

He went on to say that if readers do not like the change, Sports Illustrated can always go back and support portrait mode again.

他接着说如果读者不喜欢这一改变，《体育画报》随时可以回头，重新支持缩略图模式。

youdao

In addition, there is no way to use the supplied keyboards in portrait mode.

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For example, turning the device into portrait mode makes room for custom suggestions.

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In portrait mode they are more like a traditional (if large) TV remote.

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