1. The electricity supply here is quite erratic. 这里的电力供应相当不稳定。
2. Businessmen are displeased with erratic economic policy making. 商人们对经济政策的飘忽不定感到气愤。
3. Heart rate tracking for three of the Alaska bears showed a drop from 55 beats per minute on average before hibernation to 14 erratic ones per minute in winter. 对三头阿拉斯加的黑熊的心率追踪显示出它们在冬眠前的平均每分钟 55 下降低到了冬天里每分钟飘忽不定的 14 下。
4. These factors include the chaotic fluctuations of the atmosphere, the slower but equally erratic behavior of the oceans, changes in the land surfaces, and the extent of ice and snow. 这些因素包括混乱的大气波动、相对较慢但同样不稳定的海洋活动、地表变化，以及冰雪的覆盖范围。
5. Argentina's erratic inflation rate threatens to upset the plans. 阿根廷动荡不定的通货膨胀率有打乱这些计划的危险。
