But all I could see was an empty hallway.

但只看到空荡荡的走廊。

youdao

As soon as the man was alone, he stepped into an empty hallway and opened the envelope.

当这个人独自一人的时候，他躲到一个没人的走廊角落并打开了信封。

youdao

As soon as the man was alone, he stepped into an empty hallway and opened the envelope.

当这个人独自一人的时候，他躲到一个没人的走廊角落并打开了信封。

youdao