Solved
a. 解决了的
🗣️ 情景例句
We'll finish the conversation when they go to the museum.
他们去博物馆之后我们再聊。
Are you sure this is where we are to meet them?
你确定要在这个地方和他们碰头吗？
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。