scratch card کارتی که آن را خراش می دهند تا عددی ظاهر شود

scratch card

`scratch ,card noun [count]
a small card with a substance on its surface that you SCRATCH off to find out whether you have won a prize

scratch paper کاغذ باطله که برای یادداشت و چرکنویس نگاه می دارند

scratch paper

`scratch ,paper noun [uncount] AMERICAN
paper that has already been used which you keep to make notes on

call on someone پرسیدن معلم از شاگرد در سر کلاس

call on (someone) : to ask for a response from (someone, such as a student)
• I was hoping the teacher wouldn't call on me, because I didn't know the answer.

as a matter of course

as a matter of course

طبق روال معمول، طبیعتا، خود به خود 

- used to say that something will or should happen because it is natural, usual, or logical
• You should take proper precautions as a matter of course. [=as part of your usual routine]
• We went out to dinner on her birthday, and as a matter of course [=of course, naturally] we paid for her meal.