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
You can't take her promises seriously, she never keeps her word.
她答应的事不用当真，她说话从来不算数。
I have some shirts to send to the laundry.
我有一些衬衫送到洗衣店了。
This is a major achievement because, in relative terms, planets are very small and old not emit light.
这是一个重要的成就，因为相对来说，行星很小，而且也不发光。