【电】 trailing blacks
daggle; draw; hale; haulage; shuffle; trail
【化】 towed vehicle; towing vehicle
black; dark; secret; sinister; wicked
【医】 black; melano-
a copy kept as a record; base; bottom; end; fundus; the truth of a matter
【医】 base; basement; bases; basi-; basio-; basis; batho-; bathy-; fimdi
floor; fundus; pavimentum; solum