Tracking spacing
[電] 跟蹤間距
?? 詞語組成解析
tracking
['tr?ki?]
n. 跟蹤;
v. 跟蹤( track的現在分詞 );跟蹤攝影;留下（臟）足跡;追隨（潮流等）;
spacing
['speisi?]
n. 間隔，間距;跨距;疏密;留間隔;
??? 情景例句
Yeah, he's fine.
是的 ，他不錯。
What is the total circulation of this weekly magazine.
這家周刊總發行量多少？
May I? Thanks. Oh, this one is nicer than the other one. What's in it?
可以嗎？謝謝。噢，這個比那個更好點兒。里面放的是什么？