Ssto
abbr. single-stage to orbit 单极轨道
🗣️ 情景例句
I promised you a surprise, didn't I?
我答应过要给你一件惊喜， 不是吗？
I don't allow my children to play with toy guns.
我不让自己的孩子玩玩具枪。
They made no effort to hide their amusement whenever I produced a packet of sweets from my pocket.
每当我从口袋里掏出一包糖果时，他们都毫不掩饰地表现出他们对此感到非常好笑。