Помогите перевести. Я Английский не понимаю.Secondary school pupils do eleven subjects

Помогите перевести. Я Британский не понимаю.
Secondary school pupils do eleven subjects a week. Every morning they have a twenty minute break after the first lesson and they have a longer lunch break in the afternoon after the third lesson. At four oclock classes are usually over and pupils go home.
The English school year has three terms. When the term is over, schoolchildren have holidays. Their Christmas holidays and Easter holidays are shorter than summer holidays which begin in July and are usually over in September.