Collophane
胶磷矿
🗣️ 情景例句
why you have so many problems with math.
为什么你在数学方面有那么多问题。
Two of a trade seldom agree.
同行是冤家。
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。