countdown timer

常見(jiàn)例句

雙語(yǔ)例句

• The CX-2 has two timers: a stopwatch that counts up, and a count down timer.
  CX-2有兩個(gè)計(jì)時(shí)器：秒表既可以順計(jì)時(shí)，又可以倒計(jì)時(shí)。
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