snow·ballBrE/ˈsnəʊbɔːl/NAmE/ˈsnoʊbɔːl/verbpresent simple - I / you / we / theysnowballBrE/ˈsnəʊbɔːl/NAmE/ˈsnoʊbɔːl/present simple - he / she / itsnowballsBrE/ˈsnəʊbɔːlz/NAmE/ˈsnoʊbɔːlz/past simplesnowballedBrE/ˈsnəʊbɔːld/NAmE/ˈsnoʊbɔːld/past participlesnowballedBrE/ˈsnəʊbɔːld/NAmE/ˈsnoʊbɔːld/ -ing formsnowballingBrE/ˈsnəʊbɔːlɪŋ/NAmE/ˈsnoʊbɔːlɪŋ/[I]ifaproblem, aplan, anactivity, etc. snowballs, itquicklybecomesmuchbigger, moreserious, moreimportant, etc.滚雪球般迅速增大(或趋于严重、变得重要等)