Seco
abbr. 经济事务秘书处（State Secretariat for Economic Affairs）；连续编码（Sequential Coding）
🗣️ 情景例句
and he's very unhappy about not working.
他对没有工作感到怏怏不乐。
She's going to be 15 next month.
下个月她就满15了。
and the profits from the exhibition were used to build museums and colleges.
博览会的赢利用来建造博物馆和高等学校。