se发/s/，es发/iz/

例如: 

base/beɪs/，boxes/'bɒksɪz/

He acted from base motives.

他的行为动机卑鄙。

He didn't make it past first base.

他未能跑过一垒。

The army was cut off from its base.

那支部队与基地失去了联络。She ate two boxes of chocolates.

她吃了两盒巧克力。

They sat on wooden boxes.

他们坐在木箱上。

Let us get those boxes down for you.

让我们帮你把那些箱子搬下来吧。

I came home laden with cardboard boxes.

我满载着纸箱子回了家。