Gerontological
老年的
🗣️ 情景例句
See you there.
咱们宴会上见。
This pencil is longer than that one.
这支铅笔比那一个长。
and assuming such an automatic messenger picked up our first broadcasts of the 1920's,
假定外星人的这种自动化信息装置接收到了我们二十世纪二十年代的第一次广播信号，