Ycs
(yc 的复数) abbr. 云南商务管理体系（Yunnan Commodity和Yunnan Commerce的缩写）；重型橡套软电缆的一种型号
🗣️ 情景例句
I wonder if you could tell me.
不知你是否能告诉我。
It drives me crazy.
它使我快要发疯了。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。