zz buzz 昆蟲的嗡嗡聲 [Card #3; 字卡第3張: 第6個單字, 字母組合發音 zz]
zz = /z/(2個相同子音在一起, 只發一個音)

Some more examples(更多例字):buzzer, jazz, fizz, fuzz, fuzzy, dazzle, frazzle, embezzle, sizzle, fizzle, frizzle, drizzle, guzzle, muzzle, puzzle, nuzzle, nozzle, dizzy, mezzanine, blizzard