keyless
01
无钥匙, 无需物理钥匙
of something that does not require a physical key for operation
例子
The keyless ignition in modern cars lets you start the engine with a push of a button.
现代汽车中的无钥匙点火系统让你只需按一下按钮就能启动发动机。
Our new apartment uses a keyless lock that operates with a code instead of a key.
我们的新公寓使用一个无钥匙锁，它用代码而不是钥匙操作。
