Lesson 9: Building the New Bridge – Side 2
《第九课:建造新桥 – 侧面二》
Continuing with the original bridge design, each group should complete the second side of their bridge.
继续原来的桥梁设计,每组应完成他们的桥的第二面。
Continuing with the original bridge design, each group should complete the second side of their bridge.
继续原来的桥梁设计,每组应完成他们的桥的第二面。