Kocide
SD 氢氧化铜
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
Do you often play bridge on Saturday?
你常常在星期六玩桥牌吗？
Once he landed on the roof of a block of flats and on another occasion, he landed in a deserted car park.
一次，他把飞机降落在了一栋公寓楼的屋顶上；还有一次，降落在了一个废弃的停车场上。