英语流利说懂你英语Level4 Unit1 Part3 Vocabulary-Internal Organs
Theheartpumpsbloodtoallpartsofthebodythroughasystemofarteriesandveins.It'slocatedinthechest,betweenthelungs,andbeatsaboutoncepersecond.Thekidneysremovewasteandtoxinsfromtheblood.Theyarebeanshapedorgan