Chemex
化学交换(同位素浓缩)过程
🗣️ 情景例句
How much for a one-way ticket to New York?
去纽约的单程票多少钱？
Please make sure that the goods be protected from moisture.
请保证货物不受潮。
Hello. Could I speak to Pat, please?
喂，请帕特听电话好吗？