There have been some problems but basically it&#39；s a good system。虽然出现过一些问题，但这基本上仍不失为一个好系统。Some people find this more difficult than others。这件事有人觉得难，有人觉得不难。Some teachers find it difficult to keep their classes in order。有些教师觉得难以维持课堂秩序。I think I had some glimpses of the real character of this conversation at the time。想，我当时对于这番话的真正性质，只稍微有所领悟罢了。