索贝尔说泪水信号可能和性无关，而是和支配地位有关：处于劣势的人们可以通过泪水向较强的个体发送减少攻击的信号。
Sobel noted that the tear signaling is likely not tied to gender, but rather to dominance: Less dominant people may be sending aggression-reducing messages to stronger individuals via their tears.
普通的混凝土可以用于一些区域，但它是受攻击支配由强的酸和碱。
Ordinary concrete can be used in some areas, but it is subject to attack by strong acids and alkalis .
提问者：你已经说过了，当一个人面对一个悬崖，或者一条致命的毒蛇就要攻击的时候，智慧支配了某种行动，那种行动就是躲避。
Questioner: You have said that if one is facing a precipice, or a deadly snake about to strike, intelligence dictates a certain action, which is an action of avoidance.
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