Reversing tube
[计] 反向管
🧩 词语组成解析
a. 回动的\\n[化] 换向
🗣️ 情景例句
He always makes me laugh.
他总是让我笑。
He failed the examination but he didn't seem to care.
他考试不及格却似乎并不在乎。
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，