His awkwardness made him fumble with the key.

由于尴尬不安,他拿钥匙锁时显得手脚。

Two unique sets of self-work controling circuit are the unlocked circuits of both password keyset and electronic key.

独特的两套独立工作的控制电路，即密码键盘锁电路及电子钥匙锁电路。