Hydrazo-dicarbonamide
[化] 联二脲; 亚肼基二甲酰胺
🗣️ 情景例句
Good morning, Susan.
早安， Susan。
To race
竞争
the man sadly picked up the mattress and carried it into his house.
伤心地捡起了床垫，把它拿进了屋。