has not done yet

yet, still / Indicating it hasn't been a long time since something happened. / Indicating a choice is not good enough but still slightly better than others.

development or exploitation of natural resources etc. / development or creation of new technology, drugs, or products / development or cultivation of talent or ability

to develop or exploit resources / to develop or create new products or fields / to cultivate talent or ability

nature / spontaneity

the Sheep, the eighth of the twelve Earthly Branches

un-; in- (not yet)

the Sheep, the eighth of the twelve Earthly Branches

not yet; still; un-; non- / future; ahead; remainder; the rest

natural / spontaneous