The expression on his aide's face bordered on frantic.

Readis' face turned whiter and his expression bordered panic.

The navigator's expression bordered dangerously on disgust.

Her expression bordered on horror, and he leaned back in his chair and laughed.

His expression bordered on pain, but his eyes were nearly white-hot with leashed passion.

His expression bordered on worry as he agreed.

The old soldier's expression was, as usual, bordering somewhere on the menacing.

Some senior lawmakers suggested later that the statement, and the expressions of alarm by others, bordered on false piety.

Swansea's expression bordered on bemusement.

His expression bordered on the incredulous.