fluctuate

Từ điển American Heritage Dictionary 4th

fluc·tu·ate (flŭkʹcho͞o-āt')v. fluc·tu·at·ed, fluc·tu·at·ing, fluc·tu·atesv. intr.
1. To vary irregularly. See Synonyms at swing.
2. To rise and fall in or as if in waves; undulate.v. tr.
To cause to rise and fall or vary irregularly. [Latin flūctuāre, flūctuāt-, from flūctus, a flowing, from past participle of fluere, to flow. See bhleu- in Indo-European Roots.] flucʹtu·ant (-ənt) adj.fluc'tu·aʹtion n.

• Từ đồng nghĩa / Synonyms:
  vacillate, waver