Urinometry
尿比重测量法
🗣️ 情景例句
Have you ever studied French?
你学过法语吗？
He likes playing the violin.
他喜欢拉小提琴。
Now, smoke still rose up from the warm ground over the desolate hills.
而现在，发热的地面上仍然升腾着烟雾，弥漫在荒凉的山丘上。