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pebble | |||
gravel stones | |||
gravel pebble | |||
shingle | |||
gravel stone; kidney; small round stone; water-worn pebble | |||
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shingle |
小圆石 : 8 phrases in 5 subjects |
Automobiles | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Technology | 4 |