Tracking force
[電] 追蹤力
?? 詞語組成解析
tracking
['tr?ki?]
n. 跟蹤;
v. 跟蹤( track的現(xiàn)在分詞 );跟蹤攝影;留下（臟）足跡;追隨（潮流等）;
force
[f?:s]
n. 力;武力;（社會）勢力;魄力;
vt. 強迫;強行;促使，推動;強奸;
??? 情景例句
You are a walking dictionary.
你是活字典。
During the two years since I took charge of the department.
在我負責這個部門的兩年中。
It's very pleasant.
氣候非常宜人。