third-class

adj.

三等的，平庸的；

adv.

乘坐三等舱，作为第三类邮件（投寄）；

1. Among them,the top ones have fled to Shanghai,those of the second rank to Hankow,those of the third to Changsha,and of the fourth to the county towns.
   他们中间，头等的跑到上海，次等的跑到汉口，三等的跑到长沙，四等的跑到县城。

1. I'll send the package first class.
   我把这邮包按第一类邮件邮寄。
2. You'd better send this heavy letter by first class mail.
   你最好把这封厚信按第一类邮件邮寄。

Forward displacement analysis of third-class analytic 3-RPR planar parallel manipulators
Papers of A-grade and third-class maternity & children hospitals in Shandong Province from 1995 to 2004: a bibliometric study
Standardized management of medical equipment in third-class first-grade hospital
The Application Result Evaluation of the Clinical Pathway in One Third-class Hospital
The Controlling Mechanism of Second or Third-Class Faults on Hydrocarbon Migration and Accumulation
Clinical features of hospitalized patients with thyroid disease from a third-class grade A hospital
Rediscussion on significance of military medical equipment third-class servicing station
Investigation of contract nurses’job satisfaction at Third-Class general hospitals in Chengdu
Mental Health Status and Job Burnout of Nurses in Third-class A Hospitals of Nanchang
Research on the Happiness of Researchers in A Third-class Grade-one Hospital