Please lock the door.

He cornered himself into a blind alley in the argument.

He disclosed his secret.

The download of this software is free.

I downloaded a new app.

His words held a double surprise, like 'isseki-rokuto'.

He has always walked the path of sincerity.

His grandfather died of senility.

He is working hard to complete his doctoral dissertation.

He is working hard to complete his doctoral dissertation.