Hno
次硝酸
🗣️ 情景例句
What are your greatest strengths?
你最大的优点是什么？
Do i need a reservation to go by ship?
我坐船去需要预订吗？
A pilot noticed a balloon which seemed to be making for a Royal Air Force Station nearby.
一个飞行员发现了一只气球，它像是正飞往附近的一个皇家空军基地。