Desander
泥浆除砂器
🗣️ 情景例句
Done! You and I, Mrs. Stewart.
办到了！ Stewart太太和我，
In college I majored in economics, What was you major?
大学时我主修经济，你主修什么呢？
The doctor said he could do nothing to help him.
医生说他对此无能为力。