Sonalert
固体音调发生器
🗣️ 情景例句
He treats everyone with courtesy.
他对待每一个人都很有礼貌。
To know one's self is true progress.
能有自知之明就是真正的进步。
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。