Kynar
聚偏二氟乙烯
🗣️ 情景例句
Can I buy you a drink?
我能为你买杯酒吗？
Dear, you'll be home right after work, won't you?
亲爱的，你做完工作会直接回家是吗？
it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
提出把它作为星际间唯一可辨认的广播频率就为期不远了。