那個長的梯子，目測不到30尺，還需要2-3人操作？你那50尺的梯子，需要多少人呢？
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2026 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
