Microsatellite
微卫星
🗣️ 情景例句
He has to drive for twenty minutes to get from his house to his office.
从他的家到他的办公室有20分钟的车程。
There are 16 participants here today.
今天有16位参会者。
They finally found a small gold coin which was almost worthless.
但最后找到的是一枚几乎一钱不值的小金币。