We would literally be in unknown territory. 不夸张地说 我们会处在一个未知领域
Of unknown origin pressed against her diaphragm. 压♥迫♥着她的横隔膜
It's an uncertain time. The size of the rival group is as yet unknown. 在这个非常时刻 对手的具体数量还不知道
The vast majority still unknown to science 但具体数量仍然无人知晓
Terra incognita, "the unknown land". 这里就是未知之地 拉丁语中的“Terra Incognita”!
Its secrets remained unknown until 1986, 它的秘密直到1986年才被人们发现