Yan
n. 雁鸣声；泰国龙脑香
🗣️ 情景例句
Is there any particular color you would prefer?
你有什么特别喜欢的颜色吗？
How do you spend your leisure time?
你怎样打发业余时间？
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。