Reser
abbr. Reentry System Evaluation Radar 重返大气层系统鉴定雷达
🗣️ 情景例句
Put your cards on the table.
把牌都摊到桌面上。
The world is a ladder for some to go up and some down.
人间犹如一架梯，有人缘梯上升，有人顺梯下降。
Similarly, our own present primitive chemical rockets, though good enough to orbit men,
同样，我们目前使用的原始化学火箭，虽然可以把人送入轨道，