Sorethytan
复杂聚氧化乙烯醚混合物
🗣️ 情景例句
when I was about eighteen years old.
那时我差不多十八岁。
We'd like to recommend our new home health monitor.
我们想推荐我们新的家庭健康监测器。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。