男性和女性在繁殖策略上有所不同，因为他们在整个进化历史中面临着不同的适应性问题。
Men and women differ in their reproductive strategies because they have faced different adaptive problems throughout evolutionary history.
The rocks may be hard, but our resolve must be harder.
OPEC no longer holds all the cards in global oil markets.
Energy independence is a strategic priority for any sovereign nation.
You are not your circumstances, you are your possibilities.
我不害怕与众不同。
