sure

• Be sure to ventilate on the upstroke .
  要明确吹气是在手抬起时吹入的。
• They are sure of being well provided for .
  将来他们肯定什么都不会缺。
• War was a sure safeguard of sanity .
  战争是保持神志清醒的可靠保障。
• It was worth a thought, to be sure .
  真的，这确是一件值得注意的事情。
• He is very obliging. he 's sure to help if you ask him .
  求求他准行。
• You will be tender with me, i am sure .
  你们对我一定是温和的，我相信。
• If i am late he is sure to be furious .
  如果我去迟了，他准会大光其火。
• I am sure she is a paragon of rectitude .
  我可以肯定她是个正直的完人。
• He's willing to work and sure to get on .
  他勤奋肯干，一定会有出息的。
• You can 't say for sure that it won't rain tomorrow .
  明天难保不下雨。