科学家们从乌鸦那里收集了样本，以估计它们食物中幼虫的比例。
Scientists have collected samples from crows in order to estimate the proportion of larvae in their diet.
查看一下统计样本数量，参考班级中已经就业的毕业生比例，以及他们的工作类型。
Check the sample size, look at the percentage of the class with jobs, and look at what jobs they're getting.
在退休研究中心的养老金计划的样本中，大约60%在2006年的基金比例达到了80%以上。
In the CRR's sample of pension plans, about 60% had funding ratios of at least 80% in 2006.
应用推荐