Poly(propylene glycol)
[化] 聚丙二醇
🗣️ 情景例句
Cooking dinner for the entire family is not so easy.
给全家人做晚餐真不是件容易的事。
When would you like to return?
你打算什么时候回来？
Is this the right bus for the Capital Library?
这辆车到首都图书馆吗？