免试的英文：
to be excused from an examination

参考例句：

(of a student)go straight up to a higher school free from examinations
免试直升

Give permission to be exempted from tests
准予免试

Go straight up to a senior high school without sitting for the entrance examinations
免试直升高中

excused是什么意思：
v. [excuse] 的过去式与过去分词形式；原谅，辩解 adj. 赦免，辩解的

He made belated excuses.
他作了为时已晚的道歉。

Idle folks lack no excuses.
懒汉借口多。

He is great at finding excuses.
他可真会找借口。

Ignorance of the law excuses no man
对法律不知不能免罪

The situations allow of no excuse.
形势刻不容缓。

examination是什么意思：
n. 考试；审查，调查，考察；检查，检验

sit for an examination; take an examination
参加考试

examine by auscultation
听诊用听诊法检查

The examine is then directed to fix on the examiner's right eye.
接着就叫被检查人注视检查人的右眼。

This examination is a real challenge.
这次考试是一次真正的挑战。

The duration of the examination is three hours.
考试时间为三个小时。