名詞 turnaround:

1. time need to prepare a vessel or ship for a return trip
   同義詞：turnaround time
2. a decision to reverse an earlier decision
   同義詞：reversal, change of mind, flip-flop, turnabout
3. an area sufficiently large for a vehicle to turn around
4. act or process of unloading and loading and servicing a vessel or aircraft for a return trip
   同義詞：turnround
5. turning in the opposite direction
   同義詞：reversion, reverse, reversal, turnabout