Pdo
abbr. production design outline 产品设计草图
🗣️ 情景例句
The rules ought to be observed.
这些规则就予以遵守。
You can go whenever you wish.
无论何时你希望去你就能去。
Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
它们随船飞行一小时也难得见其扇动一下翅膀。