Phthoric acid
[化] 氢氟酸
🧩 词语组成解析
🗣️ 情景例句
Did you know that the Empire State Building is short, when compared with many of the skyscrapers today?
你知道吗？帝国大厦如果和召集的许多摩天大厦相比其实并不高。
Step after step the ladder is ascended.
按部就班，循序渐进。
What about their cat?
那她们的猫呢？