ボール螺子 だろう
bōrunejidarō
1. Probably a ball screw.
Noun
1. Probably a ball screw.
1. (corrugated) cardboard
1. bowl
1. ball-point pen
1. fair
2. fair ball
3. fair (event)
1. volleyball
1. screw
2. key (of a clock, watch, etc.); spring
1. basketball
1. softball