Dienone
二烯酮
🗣️ 情景例句
Let's go.
我们走吧。
Good work.
做得很棒！
Collecting, by occupying spare time so constructively, makes a person contented, with no time for boredom.
收藏活动通过富有建设性地利用业余时间使人感到心满意足，不再有无聊之日。