Liquidensitometer
液体密度计
🗣️ 情景例句
At six o'clock this evening.
今晚六点。
Reputation is often got without merit and lost without fault.
无功得名是常事，无过失名也是常事。
It's always warm in April and May,but it rains sometimes.
4月和5月的天气总暖洋洋的，但有时下雨。