Roughcaster
n. 毛坯；粗灰泥 (roughcast的变形)
🗣️ 情景例句
Uh-uh.
嗯。
With pleasure.
很荣幸。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，