vi

• ① 【俚】瞎扯;口齿不清地说
  • He kept bumbling on about something.他继续喃喃地说某件事。

• ② 笨拙地行动;弄错
  • He somehow bumbled through two years of college.他胡乱地在大学里混过了两年。

vi

• ① (蜜蜂等)嗡嗡叫