同根派生 英汉例句The soldiers threw a floating bridge across the river.士兵们在河面架设了一座浮桥。When he got to the Red Sea, he had his engineers build a pontoon bridge, and all the people walked across safely.当摩西来到红海时，他让他的工兵建造了一座浮桥，所有的人都安全地通过。