例句：
1、Modern plastics can stand very high and very low temperatures.
新型塑料能承受很高和很低的'温度。
2、Insects are fairly low down the food chain.
在食物链中，昆虫是相当低的一级生物。
3、The standard of this year's applications is very low.
今年的申请标准很低。
4、Water supplies to the house are at low pressure.
这房子的供水水压低。
5、It was concluded that the level of change necessary would be low.
结论是，需要作出的变更程度很低。
