Emr
等效乘法速率
🗣️ 情景例句
He is tough in doing everything.
他不管做什么事都很有毅力。
We know that you are leading exporters of coal and you can provide the quantity we need.
我们知道贵方是主要煤炭出口商，能满足我们的需求量。
It will be found that the weight moves but slightly or not at all.
结果会发现，重物是动了，但动得很小，甚至没动。