You must be ตั้งใจ to read a book.

You must be ตั้งใจ to read a book.

ผลลัพธ์ (อังกฤษ) 1:

you must be willing to read a book.you must be willing to read a book.you must be willing to read a book.

ผลลัพธ์ (อังกฤษ) 3:

You must be willing to read a book.