The principaleffect of the demand for new houses was to inflate prices.
对新住宅需求的主要结果是促使价格上涨。
《牛津词典》
2
The second principaleffect of aging on the skeletal system is a decrease in the rate of protein formation that results in a decreased ability to produce the organic portion of bone matrix.
第二个主要效果上的老化骨骼系统的发生率下降，其结果在蛋白质形成的生产能力下降的有机部分骨基质。
3
The condition appears to result from the cumulative effect of a number of factors, with atmospheric pollutants the principal culprits.