Ammoniometer
[机] 氨量计
🗣️ 情景例句
There's nothing's as troublesome as a naughty clild.
没有东西比淘气的孩子更麻烦了。
It's earier to run down the hill than go up.
下山容易上山难。
How do you want your steak?
你的牛排要几分熟？