It could only get over the mountains if it rose to 10000 feet,
问题描述：
It could only get over the mountains if it rose to 10000 feet,
请问这里的could only 怎么解释?
答
只能,只有...才能.这句的意思是：只有当它上升到1万英尺高度的时候才能跨越山峰.