h和l是什么意思

She is held in high regard by her students.

学生对她评价很高。

High interest rates are a brake on the economy.

高利率阻碍了经济发展。

Market research has shown us that people want quality, not just low prices.

市场研究告诉我们，人们需要的是高质量，而不仅仅是低价格。

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。

Their standard of living is very low.

他们的生活水平很低。