Octangonal ring(gasket)
[化] 八角垫
🗣️ 情景例句
Not a lot.
没什么重要的事啦。
Constant dropping wears away a stone.
滴水穿石。
That sounds interesting. That was a hundred years ago, wasn't it?
听起来很有意思。那是一百年前的事了，不是吗？