Density fluids
[化] 密度液(測定礦物粉末密度所用之液體)
?? 詞語組成解析
n. 液體；流體（fluid的復數形式）
??? 情景例句
I love doing it.
我愛這樣做。
Did you go to the picnic this morning?
你今早去野餐了嗎？
For all his life, he had known that people suddenly disappeared from their villages.
他一生中，聽說過有的人突然間在他們的村莊失蹤了。