你自己看看他的作業，應該能應付？那就和他一起看Khan Academy 陪她一起學試試看？看你能找到問題在哪兒嗎？
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
