be of的用法和樣例：
例句
- Can I be of help?
我能幫忙嗎? - My advice may be of use for you.
我的意見也許對你有用。 - I was glad to be of some assistance.
我很高興為您效勞。 - May I be of any help?
我可以幫忙嗎? - This book will be of great value to him in his study.
這本書將對他的研究有很大價值。 - Many of the performers were of professional standard.
許多表演者都具有專業水平。 - Perhaps this book will prove to be of some use to you in your studies.
也許這本書會對你的研究有用處。 - The statements were of political character.
這種聲明具有政治性質。
