I cant remember when I had a more pleasant time.

这是我度过的最愉快的时光。

youdao

I cant remember. You know, sir. We know very little Chinese.

我不记得了，你知道，先生，我们不太懂中文。

youdao

ScienceDaily Dec. 6, 2006 If I cant remember this morning where I put my car keys last night, its due to my memory failing me again.

每日科学价值6，如果我不能记得今天早上，我把我的车钥匙，昨晚我的记忆没有应有我一次。

youdao