#Phrasal_verb Brush up on Biror narsa boyicha oz mahoratini yoki bilimini mashq qilmoq va yaxshilamoq. You need to brush up on your maths if you want to pass the exam. Agar siz imtihondan otmoqchi bolsangiz, matematikangizni yaxshilashingiz kerak. Lets @Teacher_UZB | Youtube.com 1.2K viewsShaxzod Sheraliyev, 08:37