Opan
美
英 
例句
The servant scoured the frying opan until it shone like silver.
这个仆人在擦净这个长柄平底锅直到它像银器那样的发亮。
They Do not opan them until Christmas morning
他们直到圣诞的早晨才打开。
Discussion on Construction Technique of Large Span Opan Oblate Mountain Tunnel
山岭大跨度扁坦隧道施工技术