Duralplat
包硬铝的铜板, 锰镁合金被复硬铝
🗣️ 情景例句
Thanks, Dad.
谢谢你 ，爸爸。
Science is organized knowledge.
科学是系统化的知识。
A planet would have to be a very long way from it to be capable of supporting life.
那么一颗行星为了维持生命就要离开的它的恒星非常远。