Hints: 本期学习的字源：neg=none否定 单词不需要大写，单词与例句或不同词条之间换行即可。 注解中详细介绍了单词的拆分与释义，是学习字源分析的重中之重！一定记得听写后来看注解！
negative negligible This kind of fish is not much harvested because it is of negligible commercial value.
This kind of fish is not much harvested because it is of negligible commercial value. 这种鱼很少被捕捞，因为它的商业价值很小。