失学的英文：
lose opportunity to attend school

参考例句：

Dropouts have received assistance
失学儿童得到救助。

School dropout/leaver
辍/失学青少年

On the Reasons and Resolvent of the Drop-outs of the Exceptional Children from the Special Schools in Western Regions
关于西部特殊儿童失学、辍学现象的分析

lose是什么意思：
v. 遗失；输掉；浪费；被...夺去；不明白；逃避；错过

to lose; to miss; to disappear; to mislay
遗失

A tale never loses in the telling.
故事总是被人们说得添枝加叶的。

Merry is he that has nought to lose
人无所失,不亦乐乎

opportunity是什么意思：
n. 机会，良机

He eagerly embraced the opportunity.
他迫不及待地利用了这个机会。

This opportunity is too good to waste.
这个机遇千载难逢，绝不能错过。

Health Opportunity for People Everywhere
各地人民均可享受的保健机会

attend是什么意思：
v. 出席，参加；上（大学等）；照料；致力于；伴随

Attendance is obligatory.
出席是必须的。

in attendance on a person
随侍 [服侍] 某人

Everybody consciously attends to things and everything is attended to
人人自觉管,事事有人管。