必定

【法】 without fail

1. 生产成本的增加必定使价格上涨。
   Any increase in production costs is bound to send up prices.
2. 他没有钱，所以，他必定会出现的。
   He hasn't got any money, so he's bound to turn up sooner or later.
3. 我们教授非常有才干，必定能解决这一难题。
   Our professor is too capable not to solve this difficult problem.
4. 这一税收制度一旦施行，必定会危害国民经济。
   This tax can not be introduced without detriment to the economy.
5. 无疑，每个结果必定有其原因。
   It's certain that every effect must have a cause.

定的英语翻译：