recitation可数吗?

The act of reciting memorized materials in a public performance.
1 背诵：在当众表演时背诵记忆材料的行为
The material so presented.
2 背诵的诗文：背诵表演的材料
Oral delivery of prepared lessons by a pupil.
3 背书：小学生将已准备好的课文口头背出来
The class period within which this delivery occurs.
4 背书课：一段用于让小学生背书的课内时间
4种意思 2 4可数
1 3不可数

可数