Ultrapurity
超纯度
🗣️ 情景例句
Well, you all know I'm working on my photo album.
好吧，你们都知道我正在进行我的写真集。
There's a chance he won't be able to be home for Christmas.
他不能回家过圣诞节有偶然性。
Collecting as a serous hobby is quite different and has many advantages.
作为一种严肃的业余爱好的收藏活动完全是另外一回事，它具有许多益处。