弟弟放开手, i can ride a bike." mom and dad touched my head and smiled happily.回家,爸爸,弟弟在后面用力把车扶着,弟弟得意地对我说:“老一,我真的好奇怪,但是学摔了, my brother proudly said to me,学骑自行车, i ve learned to ride a bicycle. can you?" i don t think i dare to ride. but i still want to learn t