Prefractionation
初步分馏
🗣️ 情景例句
Here are the samples for your examination.
这里是样品，请查看。
Thank you for your inquiry, but we cannot make you an offer right now because we are presently unable to obtain appropriate materials.
谢谢贵方询价，但我们不能马上发盘，因为目前我们得不到合适的原料。
Mr.Sawyer comes home from work.He arrives home late.
索耶先生下班回家。他到家很晚。