Keyless
a. 无键的, 不用钥匙上发条的
🗣️ 情景例句
It's cold outside.
外面很冷。
My brother has a bad headache.
我的兄弟患严重的头疼。
It is all too easy to blame the railway authorities when something does go wrong.
因此，一旦铁路上真出了问题，人们便不加思索地责备铁路当局。