semi-fast

形容词 adj.
/sɛmi.fɑːst/   

英文释义

形容词 adj.
  1. Moderately fast; often used to describe a train service which doesn't stop at every station. not-comparable
    — Detailed route and timetable assessments undertaken by CBR [...] have shown that a service of two stopping trains per hour to Gorebridge, plus two semi-fast trains to Tweedbank, could be accommodated after the implementation of only three infrastructure projects.

词源

From semi- + fast.
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