Dok
abbr. Akad Nauk Doklady Akademii Nauk (Russian=Proceedings of the Academy of Science) （俄語）科學院年報
??? 情景例句
This is as useful as screen door on a submarine.
這毫無用處。
How much is it?
多少錢？
We need this order packed in a special way. We know it is fragile.
這次的貨需要特別的包裝。 我們知道它容易破碎。