Poly(propylene glycol)
[化] 聚丙二醇
🗣️ 情景例句
A real dilemma.
一个大伤脑筋的事。
How much is a round-trip ticket to Beijing?
一张到北京的来回票要多少钱？
Of course, New York is the ideal place for such an interesting study, because there is no shortage of tall buildings.
当然，纽约是进行这种有趣的试验的一个理想的地方，因为那里根本不缺乏高楼大厦，有的是高层的窗槛从上往下坠落。