HSK 4
Dàmén zhídàngdàng de kāi zhe, yuànzi lǐ yī gè rén yě méiyǒu.
The front gate stood wide open, and there wasn't a soul in the courtyard.
HSK 7-9
Guòdào zhídàngdàng de, yī yǎn wàng dàodǐ.
The corridor lay wide open - you could see straight through to the end.