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
He missed a phone call.
他没接到一通电话。
No practice, no gain in one's wit.
吃一堑，长一智。
I don't think you'll have any difficulty in pushing sales.
我认为你推销时不会有任何困难。