He's just the right man for the job.

　　他擔任這個工作倒很合宜。

　　This board is just the right size.

　　這塊木板尺寸正好。

　　People who have an idea for a site they want to build and learn just enough technology to build it.

　　有點子建構網(wǎng)站，而且只想學習剛剛好足夠多的技術。

　　For example, if you're getting just enough food, eating will be fun for you at every meal.

　　如果你吃得剛剛好，那么每次吃飯對你來說都是一件樂趣；