旱季就意味着饥饿的季节，而旱季一般要持续上半年甚至更久。
Dry seasons are hungry seasons, lasting half the year or more.
一般情况下，如果在水流过急或者遭到饥饿掠食者的攻击时，这种贫毛类蠕虫会丢掉它的头，但很快长出一个新的头部。
Generally, if a sudden rushof water or a hungry predator causes a naidid to lose its head, it willsimply grow another one.
因此，举一个非常简单的例子。饥饿的时候吃饭在一般情况下是完全正确的，任何人都不会反对。
Thus, to give a very low instance, to eat when we are hungry, is certainly, upon ordinary occasions, perfectly right and proper, and cannot miss being approved of as such by every body.
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