Previously, the truancy figures were based on averages compiled by secondaries once a year.

很明显，每年的逃学数据是从对所有中学的逃学率的平均得来的。

As long as the secondary nodes function only as backup secondaries, they can be deployed without charge.

只要辅助节点仅起到备份辅助的作用，它们可以免费部署。

First warbler Yellow-browed, the dark bases to the secondaries and black-centred greater coverts leave few other options.

第一只是黄眉柳莺，次级飞羽暗色的基部及以黑色为中心的大覆羽留下的选择很少。

With advanced malignant neoplasia signs of metastasis could be the presenting signs e. g. respiratory distress with lungs secondaries.

就诊时呈现的症状可能为早期恶性肿瘤之转移症状，例如肿瘤肺部转移造成之呼吸困难。

Polling is an access method in which a primary network device inquires, in an orderly fashion, whether secondaries have data to transmit.

轮流询问是一种主网络设备以有序的方式询问子网络是否有数据要传输的访问方法。