They will size up the island.

他们要估算一下这个岛的面积。

I bought one size up by mistake.

我错买了大一号的尺寸。

I bought it one size up by mistake.

我错买了大一号的尺寸。

You don't size up to my expectation.

你没有达到我的期望。

It isn't easy to size up the situation.

估计形势是不容易的。