on the grounds

• 由于 ... 的原因

on the grounds的用法和样例：

例句

1. He left on the grounds of ill-health.
   他借口身体不好，走了。
2. I object to the plan on the grounds that it is too expensive.
   我反对该项计划，理由是花费太大。
3. Such action can be justified on the grounds of greater efficiency.
   以提高功效为依据可以证明采取这种措施是正确的。
4. Anybody who did anything in America up to1900 was liable to be made into a film ... on the grounds of being a pioneer.
   举凡在1900年以前在美国做过某些事的人，都很容易被拍成电影 ... 以他是先驱人士为其理由。