之前

在作證之前你得先發誓。
   Before giving evidence you have to swear an oath.

飛機起飛之前你不得抽煙。
   You are not allowed to smoke until after takeoff.

在那個該死的告密者告訴老師之前,老師並沒有注意到我作弊。
   The teacher didn't notice that I was cheating until that rotten telltale told her.

考試之前她從不緊張。
   She's never tensed up before an examination.

在採取任何行動之前,你必須仔細想清楚。
   You must think it through before you take any action.

出去之前一定要收拾一下。
   Be sure to tidy up before going out.

據說孩子在會講話之前就會哼出調子了。
   It's said that child could tune before it could speak.

我們晚飯之前在公園兜了一圈,大家都感到很愉快。
   We all enjoyed a turn in the park before dinner.

你在嚐到成功的滋味之前,也許得忍受失望與失敗。
   You may have to undergo disappointment and failure before experiencing success.

湯姆睡覺之前給鐘上發條。
   Tom wound his clock before he went to bed.

他們不停地做,想在天黑之前把房子漆完。
   They worked their fingers to the bone trying to get the house painted before dark.

農夫在將牛套上大車之前先給它們套上軛。
   The farmer yoked the oxen before hitching them to the wagon.