Reofos
合成磷酸酯类
🗣️ 情景例句
That'd be very nice.
那太好了。
Would you please tell us the price of these electric heaters so as to help us make the decision.
能否告知这些电热器的价格，以便我们作出决定。
Two main techniques have been used for training elephants,
驯象有两种主要的方法，