Thetatron
n. [核]θ收缩,角向收缩
🗣️ 情景例句
They come back here for lunch,
他们回到这儿来吃午餐，
Once an opportunity slips away, it is gone for good.
机会一旦错过，永远不会再来。
How are you getting there? By train?
你准备怎样走？坐火车去吗？