unexplored

Very little forest is left unexplored nowadays.

如今,被勘测的森林是少之又少了。

Every day his science is penetrating into the region formerly marked in his map as unexplored or inexplorable.

每一天人类的科学都在向陌生的区域深入，在他的地些区域过去是被标记为勘查和无法勘查的。

No trope of stagecraft went unexplored this week as the United States jockeyed for advantage in a high-level economic dialogue with China.

美国人在本周与中国高层的经济对话中为占先机可谓无所不用其极。