弟弟放開手, i can ride a bike." mom and dad touched my head and smiled happily.回家,爸爸,弟弟在后面用力把車扶著,弟弟得意地對我說:“老一,我真的好奇怪,但是學摔了, my brother proudly said to me,學騎自行車, i ve learned to ride a bicycle. can you?" i don t think i dare to ride. but i still want to learn t