Ureometer
[医] 脲测定器, 尿素计
🗣️ 情景例句
Hello, Richard. I found your bag!
哈啰，Richard， 我找到你的旅行袋。
It'll take a few more weeks for the bone to mend.
还需要花两三周骨头才能复原。
Many of the stars cannot be seen because they are too far away.
许多星星我们之所以看不见，是因为它们离我们太远。