982. What is the meaning of the expression 'that is to say'?
there is no more to be said
ব্যাখ্যা: that is to say more accurately/exactly, একদম ঠিকভাবে বলতে গেলে। in other word, অন্য কথায়, অর্থাৎ। Persons like you, that is to say hard working person will certainly be successful.