Systems
“systems” 描述彼此连接的部件或流程：操作系统、生态系统、交通系统。复数强调多套方案或多个子系统并存。
- “Modern cars rely on complex electronic systems.” (现代汽车依赖复杂的电子系统。)
- “The city upgraded its water treatment systems.” (城市升级了水处理系统。)
- “Good schools align their systems with student well-being.” (优秀学校会让各项制度与学生福祉对齐。)
“system” 源自希腊语 systēma（整体组合），经由拉丁语进入英语；复数 -s 表示多套组合。
词根 system + 复数后缀 -s；形容词 systematic 另见词条。
政策讨论里 “healthcare systems” 比较国家模式；科技语境 “legacy systems” 指旧代码与旧硬件，常与迁移成本相关。
- 固定搭配: “operating systems” (操作系统), “solar systems” (太阳系；亦指家用太阳能系统)
sys- 听起来像“丝丝入扣”：多条线织成网，就是多个 systems 协同。
“When two legacy systems failed at once, engineers worked through the night to restore payroll.” (两套旧系统同时故障，工程师通宵抢修以恢复工资发放。)