Security force
un. 〔军〕警戒部队；保安部队\\n
🧩 词语组成解析
force
[fɔ:s]
n. 力;武力;（社会）势力;魄力;
vt. 强迫;强行;促使，推动;强奸;
🗣️ 情景例句
Well, I've thought a lot about which college,
嗯， 我为了上哪一所大学想了很多，
They describe how each process goes on to the next.
表述着每道工艺间的衔接情况。
The train was traveling at 120 miles an hour.
火车时速一百二十英里。