The following is the line at the end of Optimus Prime, in both Chinese and English:

In any war,

In any war,

There is calm between storms.

There are times of calm between storms.

One day we will lose confidence.

We sometimes lose confidence.

When our allies betray us.

Especially when allies betray themselves.

But the day will never come when we abandon this planet and its people.

But we will never give up the earth and mankind.