Idk
abbr. 我不知道（I don not know）；影像开发套件
🗣️ 情景例句
Oh?
噢？
I'm afraid it was a bother for you to do this.
我害怕做这会给你带来麻烦。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为，在1850年到1910年之间，野牛的头数从6，000万头降到只有几百头了。