Triadaxis
三次对称轴
🗣️ 情景例句
We sure do, Dad.
当然 ，爸爸。
Soon up, soon down.
升得高，落得快。
One Saturday afternoon, I hauled the machine into the garden and had a close look at it.
一个星期六的下午，我把割草机拉到了花园里，仔细检查了一番。