context1: One of them asked her, “¿Cómo se llama este lugar?” not knowing the native language of course. Much to the old woman’s surprise and perhaps excitement, she replied without much ado, “Ah, pasi,” which means some of the unhusked rice on her basket held in both hands. She must have thought that they were eager to <strong>know</strong> what was in the basket and what she was doing, because she could not <strong>understand</strong> their language.
context2: If the nonstoichiometric imbalance is too large, the polymer molecular weight will be too low. It is important to <strong>understand</strong> the quantitative effect of the stoichiometric imbalance of reactants on the molecular weight. Also, this is necessary in order to <strong>know</strong> the quantitative effect of any reactive impurities that may be present in the reaction mixture either initially or that are formed by undesirable side reactions.