second-class adjective
Learner's definition of SECOND-CLASS
1
: of or relating to second class二等的 -
a second-class seat二等座
-
second-class postage二类邮资
2
a : not given the same rights or treatment as the rest of the people in a society未受到与其他公民同等待遇的 b : not of the best quality次好的