這段話中的thinking he had not made himself understand如何理解
One day,I heard an American boy say to a Chinese student of English,"You speak very good English."But the student answered,"No,no.My English is very poor."The foreigner was quite surprised at the answer,Thinking he had not made himself understood or the Chinese student had not heard him clearly,he said,"Yes,indeed,you speak very well."But the Chinese student still kept saying,"No."In the end the American boy could not understand and didn't know what to say.