用作定语
▲~+n. He is a commonplace person.他是个凡夫俗子。
It's a mere commonplace thing.那是件极平常的事。
Be not content with the commonplace character.不要满足于普通的共性。
用作表语
▲S+be+~
Heart transplant operations are becoming fairly commonplace.心脏移植正在成为相当常见的手术。
▲S+be+~+for sb+to-v Soon it will be commonplace for men to travel to the moon.人们去月球旅行很快就会成为常事。