vt.

1. 開……的鎖
   She unlocked the door and turned the handle to open it.

   她打開門鎖，轉動把手開了門。

2. 開；開啟
3. 揭開；表露
   He unlocked the secrets of his heart.

   他表露了他心中的祕密。

vi.

1. 開著；解開

v.

1. undo the lock of (something) using a key.
2. make newly available.