The "Balloon" spaceship uses water to push it through space and costs about one-thirtieth of a normal spaceship.
“气球”宇宙飞船使用水力向太空推进，成本大约是普通宇宙飞船的三十分之一。
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You may not want to hear it, but those who always push you hard in your life are often the ones telling you they still love you and care about you, and want to make you better.