Ssto
abbr. single-stage to orbit 单极轨道
🗣️ 情景例句
Yes, indeed.
对， 没错。
A handful of common sense is worth bushel of learning.
一点小常识常胜过很多有价值的学问。
You don't keep your word. Why didn't you tell me then? I've been looking forward to it. How can you change your mind at last minute?
你不守信用。为什么那时不告诉我呢？我一直都盼望着它呢。你怎么能在最后时刻改变主意呢？