twelve

十二、十二个

Six plus six equals twelve, as every child learns early.

六加六等于十二，这是每个孩子很早就学会的。

十二点

The meeting starts at twelve, so please don't be late.

会议十二点开始，请不要迟到。

十二岁

She started learning the violin at twelve.

她十二岁时开始学小提琴。

十二的、十二个的

There are twelve eggs in a standard carton.

一般一盒装有十二颗蛋。