Along with the headbutt, the signaller makes a brief "piping" sound, says Nieh.

随着用头碰撞，这些通讯兵发出短暂的“尖叫”声，聂说。

Of course that sort of thing was not convenient, so we sent a shell and blew the signaller all to pieces.

这当然很不好， 我们于是发炮把那信号员炸得粉身碎骨。