用with短语翻译下面的几个句子~在他的帮助下,我们按时完成了工作.在他们的支持下,我们正在搞研究.在你的支持下,我作了这个决定.没他们的帮助,我们不可能获胜.

With his help,we accomplish the work on time.
With their support,we are conducting a research.
With your help,i made the decision.
We can't win with their help.