Translation of "Believing" in Chinese

There are sufficient grounds for believing he is honest.

有足够的理由相信他是诚实的。

My mind is at ease believing you'll keep the secret.

我十分安心，因為我知道你會保守秘密。

We are not alone in believing that he is not guilty.

我们并不是唯一的认为他无罪的人。

- It is hard for me to believe this.
- I have difficulty believing that.

我觉得这难以置信。

What's more, from now on you must remember that you cannot go to the seaside again (by believing this forever, I have already found the biggest, best and most fitting one for me).

而且要記住，從此後不要再到海邊去。（永遠相信，我已經找到最大、最好、最適合我的那一顆）。