Idk
abbr. 我不知道（I don not know）；影像开发套件
🗣️ 情景例句
Summer is vacation time.
夏季是度假的好时机。
Kind words are worth much and cost little.
口头方便不费力。
It's the library's. Please be more careful from now on!
“是图书馆的书。从现在起请你倍加小心！”