
好词典

作为机械部件时源自荷兰语 'kam'(齿轮齿);作为摄像头缩写源自 'camera'(拉丁语,原意为“拱形房间”)
❶ cam 的复数形式,指机械装置中的凸轮,一种能将旋转运动转化为直线运动的零件。
“The engine's cams control the opening and closing of the valves.”
(发动机的凸轮控制气门的开合。)
“These cams are made of high-strength steel.”
(这些凸轮由高强度钢制成。)
❶ 口语中常指摄像头(camera 的缩写),尤指用于监控或直播的小型摄像装置。
“The security cams recorded the entire incident.”
(监控摄像头拍下了整个事件。)
“She set up multiple cams for her live stream.”
(她为直播设置了多个摄像头。)
on cams — 指正在被摄像头拍摄或监控的状态。
“The thieves were caught on cams stealing the jewelry.”
(小偷在摄像头下偷珠宝时被拍到。)
dash cams — 车载摄像头,通常安装在汽车仪表盘上记录行车过程。
“His dash cams provided crucial evidence for the accident.”
(他的行车记录仪为事故提供了关键证据。)