Yc
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'm going to the library to do some research.
我要去图书馆搞些调研。
He that will eat the nut must first crack the shell.
欲所得，必先劳。
I'm really looking forward to this.
我期待这次参观已久了。