thinkof后面加什么介詞

　　And again, we must think of the cost.

　　再說，我們必須考慮成本。

　　What do you think of the show so far?

　　到目前為止你覺得這場演出怎么樣？

　　Think of a number, any number.

　　想一個數字，隨便一個。

　　I think of this place as my home.

　　我把這個地方當成了家。

　　Think of a number and multiply it by two.

　　想出一個數，然后乘以二。