Bagpack
背包
🗣️ 情景例句
Hmmm.
嗯。
Everybody's business is nobody's business.
人人都管，大家不管。
In the organization of industrial life the influence of the factory upon the physiological and mental state of the workers has been completely neglected.
在工业生活的组织中，工厂对工人的生理和精神状态的影响完全被忽视了。