The 'glass half-empty' view is that there is still much we have ignored and much we do not know.

“悲观”(glass half - empty)的观点则认为，现在还有大量未曾注意到的内容，还大量未知的内容。

youdao

The 'glass half-empty' view is that there is still much we have ignored and much we do not know.

“悲观”(glass half - empty)的观点则认为，现在还有大量未曾注意到的内容，还大量未知的内容。

youdao