practice exclusively (verb) specialize: concentrate on specific area
Sinonime: alternate, careen, dither, falter, halt, hesitate, lurch,
overlap,
pitch, reel, shake, stammer,
step,
sway,
swing, teeter, titubate, topple, totter, vacillate, waver, wheel, whiffle, wobble, zigzag
Antonime: broaden