Hydrometer
n. 液体比重计\\n[化] 液体比重计
📖 牛津释义
hydrometer
n
scientificinstrument that measures the density of liquids 液体比重计.
🗣️ 情景例句
and they lived in New York.
而他们住在纽约。
He has a boat.
他有一艘船。
This one?
是这本吗？