Time is so speedy. The lesson is attention-grabbing and pleasant. Her smile is so sweet and he or she makes the environment comforting.???? ??(? ?? ?? ????. ?? ??? ???) ????? ?? ? ? ? ??? ??. ???? ??? ?? ??.?? ??? ?? ????? ????? ?? ??? ?? ? ???? ????????“??”??????????????????????“???????”???“?????”???? ????? ?? ????? ??? ?? ???? ??? ???