n. the state of being free from danger or injury
n. defense against financial failure; financial independence
n. freedom from anxiety or fear
n. a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends
n. 安全, 安全性, 防护物, 保安, 可靠性, 担保人, 抵押品, 保证金
[计] 安全性, 保密性, 安全检查程序
1. The company hired more staff to improve security in the building.
公司雇用了更多员工以提高大楼的安全性。
2. You should always use a strong password to protect your online security.
你应该始终使用强密码来保护你的在线安全。
3. The government is investing in new technology to enhance national security.
政府正在投资新技术以增强国家安全。