但是我们要修饰而可以采取丸粒的形式。
如果你想训练一只实验室老鼠拉曲柄去拿到一粒小丸,并定时给它一些小奖励的话,(但不是每次都一样,)那么这个小东西的条件反射会更强烈。
If you want to train a laboratory rat to pull a crank to get a food pellet, the reflex will be scratched in deeper if the creature is rewarded with some regularity but not all the time.
任何一位受过训练的产婆都会在她怀孕初给她一粒驱虫丸和补铁药,提醒她贫血的危害,为她鼓气。
A trained midwife could have given her a deworming pill and iron supplements early in the pregnancy, addressing that anemia and strengthening her.
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