n. 1.安全(感)；安稳；稳妥；平安。 2.确实；确信；把握；可靠性；安心。 3.【军事】防御物。 4.保护；防护；保卫；防御 (against; from); 治安，安全防卫。 5.【法律】保证，担保；抵押。 6.担保品；保证金；借用证 (for)。 7.担保人；保证人。 8.〔pl.〕证券；债券；公债；股票。 9.〔古语〕疏忽；大意。 短语和例子 public security 公安。 public security organs 保卫机关；公安机关。 What security can you offer for it 你对这件事能拿什么做担保呢？ S- is the greatest enemy. 疏忽[麻痹大意]是最大的敌人。 give security against 保护；使无…之忧。 go [enter into, give] security for 做…的保人。 in security 安全。 in security for 作…的担保。 on good security 有可靠的抵押。
measures taken as a precaution against theft or espionage or sabotage etc.; "military security has been stepped up since the recent uprising" 同义词：security measures,
an electrical device that sets off an alarm when someone tries to break in 同义词：security system, security measure,
a guarantee that an obligation will be met 同义词：surety,
freedom from anxiety or fear; "the watch dog gave her a feeling of security"
a department responsible for the security of the institution''s property and workers; "the head of security was a former policeman" 同义词：security department,
defense against financial failure; financial independence; "his pension gave him security in his old age"; "insurance provided protection against loss of wages due to illness" 同义词：protection,
property that your creditor can claim in case you default on your obligation; "bankers are reluctant to lend without good security" 同义词：surety,
a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends; "he held several valuable securities" 同义词：certificate,
the state of being free from danger or injury; "we support the armed services in the name of national security"
Security as a condition is the degree of resistance to, or protection from, harm. It applies to any vulnerable and valuable asset, such as a person, dwelling, community, nation, or organization.
例句与用法
1.
We were thus the key to global security . 因此我们是全球安全的关键。
2.
The government boosted security precautions . 政府加强保安预防措施。
3.
Everyone who is old can have security . 每一个老年人都能得到生活保障。
4.
Half of them owned public securities . 他们之中有一半人有公债券。
5.
What security can you offer for it ? 你对这件事能拿什么做担保呢？
6.
A new security man threw his weight about . 一个新上任的安全官滥用职权。
7.
The couple did not have social security . 两位老人没有社会保险。
8.
It was treated as a major security leak . 它被列为重大安全事故。
9.
Security program was based on calculated risk . 保安工作准备冒一定的风险。
10.
Generally the security was first-rate . 总的来说，保密工作还是干得挺出色的。
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