Usage of 'of' How can I understand the following sentence?? The attempt for synchronizing sound and picture was of a help toward the advancement of sound film. I can't understand the part, "was of a help" I think this sentence means that The attempt for synchronizing sound and picture helped the advancement of sound film. Why did the writer use "was of a help toward ~". Thank you so much in advance!!

I need your help with conjunction All hibernators periodically rouse themselves for hours to days, a behavior which is not understood since it uses up precious energy stores. How can "a behavior" be written without conjunction?? Thank you so much!

”もの”と”こと”の違うのは？

始めまして！

私は日本語を勉強しております。日本で６ヶ月間住んだことがおりますが、いつもものとことの使い方が難しいですね。

 

お手伝いをお願いいたします！！