✅ 同义词
🗣️ 情景例句
I'm quite active and energetic.
我积极而充满活力。
When the police arrived, I was resting.
当警察来的时候，我在休息。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.
然而，在和外星人联系中我们遇到的最大困难是分隔我们的天文距离。