Tracking velocity
[计] 跟踪速度
🧩 词语组成解析
tracking
['trækiŋ]
n. 跟踪;
v. 跟踪( track的现在分词 );跟踪摄影;留下（脏）足迹;追随（潮流等）;
🗣️ 情景例句
Something old.
旧的东西。
He that walks with wise men should be wise.
与智者行即得其智。
Just ahead of us there was a huge fissure.
离我们不远处，出现一个大裂缝。