"一个三英尺深的洞"用英语怎么说一个三英尺深的洞A hole three feet deep要植树，我们必须先挖一个三英尺深的洞。To plant the tree, we must dig a three-foot-deep hole.
你好！一个三英尺深的洞A hole three feet deep
a three-foot-deep hole
