- for reference, no to be taken out of this room
- 参考书: reference book
- 不得: cannot; mustn't; not to
- 带走: carry; carrying off; entrain ...
- 不得将参考书携出阅览室: reference books may not be taken out of the reading room
- 参考书: reference book◇参考书目 bibliography; a list of reference books; 参考书目录 directory catalogue
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