Chinese lesson： Pinyin "can & chan" , HanRoot sys "虫"

这是蚕, 蚕在桑叶里

Tongue twister： 蚕和蝉  

                                    这是蚕，
                                    那是蝉，
                                               蚕常在叶里藏，
                                               蝉常在林里唱。
                                                                can2 for 蚕，chan2 for 蝉。 
                                                                              HanRoot : "虫chong2" in both “蚕”“蝉”

那是蝉。成熟的黑蝉