A null string contains zero characters or only Spaces or tabs.

空字符串包含零个字符或只有空格或制表符。

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The toilet and the bathroom were the only spaces where doors were installed.

洗手间和浴室是唯一装有门的空间。

youdao

The sender address cannot be an empty string or a string containing only spaces.

发件人地址不能为空字符串或只包括空格的字符串。

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Even the adult-only spaces feature a little bit of Disney magic: the backdrop of the Skyline bar changes daily to reveal a different city view, transporting guests to Hong Kong, Paris, Chicago and New York.

BBC: Keeping Disney magic afloat

The call was for better signposting to sexual and reproductive health services, for girls-only spaces, for health education and promotion programs to counter myths and misinformation, for confidence and self-esteem building initiatives, and for vocational training to foster economic independence.

CNN: Girls at risk: Starting a revolution for teenage mothers

Sun Fei, the manager of a 230-room branch of Motel 168, a privately-owned chain, says he has only 60 parking spaces.

ECONOMIST: Cars in China