adj.长期的;广大的;伸展的
动词extend的过去式及过去分词形式.
Do you have an extended warranty? 你们有长期的质量保证吗?
The child has received formal education over an extended period. 这孩子接受过长期的正规教育。
For large, extended chords thrust is preferable to free fall. 用推力动作弹奏伸展的大和弦优于自由下落动作。