Polyhydrazide
[化] 聚酰肼
🗣️ 情景例句
The rural workforce has been flowing in to the cities ever since the open door policy was adopted.
自从改革开放政策实施以来，农付劳动力正不断流向城市。
Don't take any notice of what he says-he's pulling your leg.
别理睬他，他在跟你开玩笑。
Let's meet outside the park gate.
咱们在公园的大门外碰头吧。