loki 用英语:

Meg's hair curls naturally.

When I was a child, I had long golden curls

A tricorn trimmed with gold lace was set at a rakish angle over a wig of white curls that dropped down to his waist.

The door locks automatically.

Before meeting your guests, be sure to carefully check that the toilet door locks.

For code type locks that don't need a key there are 'free dial' systems where you can set any number you like and fixed types where the number is set in advance.