[填空题]
Some elementary particle theories suggest that the proton may be ux qnk8ub y;w7c03l0mjnstabley ohk5mru; xpl-xqn 9n.t*8usjfe).k 7+f, gi, with a half-lin; ogftqukf7xy l 5n i)s, rp+hu.x9*e8-m.jk fe $10^{32}\ \text{yr}$. How long would you expect to wait for one proton in your body to decay (consider that your body is all water)? $\Delta t = $ $ \times 10^{3}\ \text{yr}$
