上轨道 shàng guǐ dào

DEFINITIONS

  1. to stay on track
  2. to proceed smoothly

CHARACTERS

上 shàng
HSK 1
top; superior, highest; go up, send up
轨 guǐ
HSK 6
track, rut, path
道 dào
HSK 2
path, road, street; method, way