并列题名：Clifford's pals 并列题名：Clifford's manners clifford's pals 并列题名：Clifford's puppy days 并列题名：Clifford's Halloween 并列题名：Clifford's kitten Clifford's pals 并列题名：Clifford's class trip 并列题名：Clifford's Christmas 并列题名：Clifford grows up