Policy surveillance
[经] 政策监督
🧩 词语组成解析
🗣️ 情景例句
and I stayed out an extra half hour.
我还特别多待了半个小时。
However.
无论怎么理。
It marked the end of the great tradition of ships with sails and the beginning of a new era.
它标志着帆船伟大传统的结束与一个新纪元的开始。