be ten a penny

見 penny

ten out of ten

a perfect mark

滿分

used to congratulate someone or indicate that they have done something well

（由于對方工作出色而給予的）贊揚；祝賀

you have to give her ten out of ten for persistence.

你得贊揚她的堅持不懈。

ten to one

very probably

十之八九；很可能

ten to one you'll never find out who did this.

你很可能永遠都找不出這是誰做的。